That's an odd coin - I wonder why [closed]
$begingroup$
Around the world, there are several roughly polygonal coins. Here's an example:
One thing you'll notice is that they all have an odd number of sides. It turns out that this is universally true for modern polygonal coins (if you have an extant example where this is not true, please post it!!)
And it turns out that there's a perfectly sensible reason for this.
Why do modern polygonal coins have an odd number of sides?
Edit: I've been convinced by the various answers and comments that my statement is not correct and many coins around the world are, in fact, genuine polygons. My inspiration for this puzzle (if it's really a puzzle) comes from here.
geometry real
asked Apr 1 at 17:55
Dr XorileDr Xorile
14.1k33082
$endgroup$
closed as off-topic by generalcrispy, El-Guest, TwoBitOperation, Brandon_J, Peregrine Rook Apr 3 at 3:42
This question appears to be off-topic. The users who voted to close gave these specific reasons:
- "This question is off-topic as it appears to be a mathematics problem, as opposed to a mathematical puzzle. For more info, see "Are math-textbook-style problems on topic?" on meta." – generalcrispy, El-Guest, Peregrine Rook
- "This question may invite speculative answers, as the question is not fully defined. The validity of some answers may be based upon opinion. Good questions for this site have a limited number of objectively correct answers. See also: Why are questions off-topic if they invite answers which are not demonstrably correct, or are otherwise speculative?" – TwoBitOperation, Brandon_J
If this question can be reworded to fit the rules in the help center, please edit the question.
|
show 8 more comments
$begingroup$
Around the world, there are several roughly polygonal coins. Here's an example:
One thing you'll notice is that they all have an odd number of sides. It turns out that this is universally true for modern polygonal coins (if you have an extant example where this is not true, please post it!!)
And it turns out that there's a perfectly sensible reason for this.
Why do modern polygonal coins have an odd number of sides?
Edit: I've been convinced by the various answers and comments that my statement is not correct and many coins around the world are, in fact, genuine polygons. My inspiration for this puzzle (if it's really a puzzle) comes from here.
geometry real
asked Apr 1 at 17:55
Dr XorileDr Xorile
14.1k33082
$endgroup$
closed as off-topic by generalcrispy, El-Guest, TwoBitOperation, Brandon_J, Peregrine Rook Apr 3 at 3:42
This question appears to be off-topic. The users who voted to close gave these specific reasons:
- "This question is off-topic as it appears to be a mathematics problem, as opposed to a mathematical puzzle. For more info, see "Are math-textbook-style problems on topic?" on meta." – generalcrispy, El-Guest, Peregrine Rook
- "This question may invite speculative answers, as the question is not fully defined. The validity of some answers may be based upon opinion. Good questions for this site have a limited number of objectively correct answers. See also: Why are questions off-topic if they invite answers which are not demonstrably correct, or are otherwise speculative?" – TwoBitOperation, Brandon_J
If this question can be reworded to fit the rules in the help center, please edit the question.
3
$begingroup$
Have a look here and here
$endgroup$
– ielyamani
Apr 1 at 22:15
4
$begingroup$
Not an answer, but almost a contradiction: Pieces of eight
$endgroup$
– humn
Apr 2 at 1:57
3
$begingroup$
Not universally true. Australian 50c piece is ten-sided.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:01
4
$begingroup$
This seems to be a trivia question, not a puzzle...
$endgroup$
– Chris
Apr 2 at 11:18
3
$begingroup$
@user477343 consider Zeno's paradox :) -- However a polygon is made of a finite amount of edges by definition, so a circle (or any curved shape) still isn't a polygon.
$endgroup$
– Quentin
Apr 2 at 12:39
|
show 8 more comments
$begingroup$
Around the world, there are several roughly polygonal coins. Here's an example:
One thing you'll notice is that they all have an odd number of sides. It turns out that this is universally true for modern polygonal coins (if you have an extant example where this is not true, please post it!!)
And it turns out that there's a perfectly sensible reason for this.
Why do modern polygonal coins have an odd number of sides?
Edit: I've been convinced by the various answers and comments that my statement is not correct and many coins around the world are, in fact, genuine polygons. My inspiration for this puzzle (if it's really a puzzle) comes from here.
geometry real
asked Apr 1 at 17:55
Dr XorileDr Xorile
14.1k33082
$endgroup$
Around the world, there are several roughly polygonal coins. Here's an example:
One thing you'll notice is that they all have an odd number of sides. It turns out that this is universally true for modern polygonal coins (if you have an extant example where this is not true, please post it!!)
And it turns out that there's a perfectly sensible reason for this.
Why do modern polygonal coins have an odd number of sides?
Edit: I've been convinced by the various answers and comments that my statement is not correct and many coins around the world are, in fact, genuine polygons. My inspiration for this puzzle (if it's really a puzzle) comes from here.
geometry real
geometry real
asked Apr 1 at 17:55
Dr XorileDr Xorile
14.1k33082
asked Apr 1 at 17:55
Dr XorileDr Xorile
14.1k33082
edited Apr 2 at 19:52
Dr Xorile
asked Apr 1 at 17:55
Dr XorileDr Xorile
14.1k33082
asked Apr 1 at 17:55
Dr XorileDr Xorile
14.1k33082
asked Apr 1 at 17:55
Dr XorileDr Xorile
14.1k33082
14.1k33082
closed as off-topic by generalcrispy, El-Guest, TwoBitOperation, Brandon_J, Peregrine Rook Apr 3 at 3:42
This question appears to be off-topic. The users who voted to close gave these specific reasons:
- "This question is off-topic as it appears to be a mathematics problem, as opposed to a mathematical puzzle. For more info, see "Are math-textbook-style problems on topic?" on meta." – generalcrispy, El-Guest, Peregrine Rook
- "This question may invite speculative answers, as the question is not fully defined. The validity of some answers may be based upon opinion. Good questions for this site have a limited number of objectively correct answers. See also: Why are questions off-topic if they invite answers which are not demonstrably correct, or are otherwise speculative?" – TwoBitOperation, Brandon_J
If this question can be reworded to fit the rules in the help center, please edit the question.
closed as off-topic by generalcrispy, El-Guest, TwoBitOperation, Brandon_J, Peregrine Rook Apr 3 at 3:42
This question appears to be off-topic. The users who voted to close gave these specific reasons:
- "This question is off-topic as it appears to be a mathematics problem, as opposed to a mathematical puzzle. For more info, see "Are math-textbook-style problems on topic?" on meta." – generalcrispy, El-Guest, Peregrine Rook
- "This question may invite speculative answers, as the question is not fully defined. The validity of some answers may be based upon opinion. Good questions for this site have a limited number of objectively correct answers. See also: Why are questions off-topic if they invite answers which are not demonstrably correct, or are otherwise speculative?" – TwoBitOperation, Brandon_J
If this question can be reworded to fit the rules in the help center, please edit the question.
3
$begingroup$
Have a look here and here
$endgroup$
– ielyamani
Apr 1 at 22:15
4
$begingroup$
Not an answer, but almost a contradiction: Pieces of eight
$endgroup$
– humn
Apr 2 at 1:57
3
$begingroup$
Not universally true. Australian 50c piece is ten-sided.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:01
4
$begingroup$
This seems to be a trivia question, not a puzzle...
$endgroup$
– Chris
Apr 2 at 11:18
3
$begingroup$
@user477343 consider Zeno's paradox :) -- However a polygon is made of a finite amount of edges by definition, so a circle (or any curved shape) still isn't a polygon.
$endgroup$
– Quentin
Apr 2 at 12:39
|
show 8 more comments
3
$begingroup$
Have a look here and here
$endgroup$
– ielyamani
Apr 1 at 22:15
4
$begingroup$
Not an answer, but almost a contradiction: Pieces of eight
$endgroup$
– humn
Apr 2 at 1:57
3
$begingroup$
Not universally true. Australian 50c piece is ten-sided.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:01
4
$begingroup$
This seems to be a trivia question, not a puzzle...
$endgroup$
– Chris
Apr 2 at 11:18
3
$begingroup$
@user477343 consider Zeno's paradox :) -- However a polygon is made of a finite amount of edges by definition, so a circle (or any curved shape) still isn't a polygon.
$endgroup$
– Quentin
Apr 2 at 12:39
3
3
$begingroup$
Have a look here and here
$endgroup$
– ielyamani
Apr 1 at 22:15
$begingroup$
Have a look here and here
$endgroup$
– ielyamani
Apr 1 at 22:15
4
4
$begingroup$
Not an answer, but almost a contradiction: Pieces of eight
$endgroup$
– humn
Apr 2 at 1:57
$begingroup$
Not an answer, but almost a contradiction: Pieces of eight
$endgroup$
– humn
Apr 2 at 1:57
3
3
$begingroup$
Not universally true. Australian 50c piece is ten-sided.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:01
$begingroup$
Not universally true. Australian 50c piece is ten-sided.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:01
4
4
$begingroup$
This seems to be a trivia question, not a puzzle...
$endgroup$
– Chris
Apr 2 at 11:18
$begingroup$
This seems to be a trivia question, not a puzzle...
$endgroup$
– Chris
Apr 2 at 11:18
3
3
$begingroup$
@user477343 consider Zeno's paradox :) -- However a polygon is made of a finite amount of edges by definition, so a circle (or any curved shape) still isn't a polygon.
$endgroup$
– Quentin
Apr 2 at 12:39
$begingroup$
@user477343 consider Zeno's paradox :) -- However a polygon is made of a finite amount of edges by definition, so a circle (or any curved shape) still isn't a polygon.
$endgroup$
– Quentin
Apr 2 at 12:39
|
show 8 more comments
3 Answers
3
active
oldest
votes
$begingroup$
I'm not entirely sure this is exactly a puzzle (but also not sure enough to suggest closing the question or anything). Anyway, I guess the reason is that
it's useful for them to be shapes of constant width (so that, e.g., they can go nicely into machines that accept coins for payment), and there's a nice simple construction for those that gives you a regular-polygon-ish shape with any odd number of sides; but nothing of that sort can possibly work for an even number of sides (because the diameter would have to be larger "between corners" than "in the middle of the side").
answered Apr 1 at 17:59
Gareth McCaughan♦Gareth McCaughan
66.9k3169260
$endgroup$
1
$begingroup$
relevant link: Reuleaux polygons.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:05
add a comment |
$begingroup$
Looking at this:
CoinBrothers
it is rarely true.
For example, Australia 2019:
https://coin-brothers.com/catalog/coin3771
answered Apr 1 at 18:09
JonMark PerryJonMark Perry
20.6k64099
$endgroup$
1
$begingroup$
@DrXorile; there's more recent later on
$endgroup$
– JonMark Perry
Apr 1 at 18:19
$begingroup$
I wonder how all these machines do in vending machines. Must make it tricky.
$endgroup$
– Dr Xorile
Apr 2 at 19:49
$begingroup$
@DrXorile The Australian 50c piece has been around in its current shape since 1969. I understand there are a few vending machines that don't accept it, but I can't recall ever encountering one, and by my understanding the issue is with its size rather than the shape. It's about 32 mm across, much larger than any other Australian coin, so distinguishing it from others isn't a challenge but everything has to be larger to accommodate it.
$endgroup$
– Geoffrey Brent
Apr 3 at 1:44
add a comment |
$begingroup$
Note that
The puzzle was posted on April 1st, a.k.a. April's Fools day
It turns out that
The post contains several falsehoods.
For example,
"An example" refers to an image with three coins. It is not in fact universally true that all coins are odd-sided (thanks JonMark Perry).
Indeed,
This question is not in fact a trivia question, but an Aprils Fools puzzle.
The answer is obviously
That I'm reading way too much into this. Possible ideas: "odd" refers to "odd one out". From the three coins, the larger 50p is no longer in production. The 20p is of a different denomination. The orientation in the picture may not be random. But somehow it should all link back to the coins being (roughly) polygonal...
answered Apr 2 at 14:28
SanchisesSanchises
21117
$endgroup$
$begingroup$
Rot13: creuncf pbafvqre gung bqq pna zrna crephyvne be hahfhny.
$endgroup$
– Aaron Hayman
Apr 2 at 15:59
$begingroup$
Love it. I wish I were that clever...
$endgroup$
– Dr Xorile
Apr 2 at 19:48
$begingroup$
@DrXorile Aww man! I really thought there was a "Modern Polygonal Coin™" puzzle in here...
$endgroup$
– Sanchises
Apr 2 at 19:52
add a comment |
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
I'm not entirely sure this is exactly a puzzle (but also not sure enough to suggest closing the question or anything). Anyway, I guess the reason is that
it's useful for them to be shapes of constant width (so that, e.g., they can go nicely into machines that accept coins for payment), and there's a nice simple construction for those that gives you a regular-polygon-ish shape with any odd number of sides; but nothing of that sort can possibly work for an even number of sides (because the diameter would have to be larger "between corners" than "in the middle of the side").
answered Apr 1 at 17:59
Gareth McCaughan♦Gareth McCaughan
66.9k3169260
$endgroup$
1
$begingroup$
relevant link: Reuleaux polygons.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:05
add a comment |
$begingroup$
I'm not entirely sure this is exactly a puzzle (but also not sure enough to suggest closing the question or anything). Anyway, I guess the reason is that
it's useful for them to be shapes of constant width (so that, e.g., they can go nicely into machines that accept coins for payment), and there's a nice simple construction for those that gives you a regular-polygon-ish shape with any odd number of sides; but nothing of that sort can possibly work for an even number of sides (because the diameter would have to be larger "between corners" than "in the middle of the side").
answered Apr 1 at 17:59
Gareth McCaughan♦Gareth McCaughan
66.9k3169260
$endgroup$
1
$begingroup$
relevant link: Reuleaux polygons.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:05
add a comment |
$begingroup$
I'm not entirely sure this is exactly a puzzle (but also not sure enough to suggest closing the question or anything). Anyway, I guess the reason is that
it's useful for them to be shapes of constant width (so that, e.g., they can go nicely into machines that accept coins for payment), and there's a nice simple construction for those that gives you a regular-polygon-ish shape with any odd number of sides; but nothing of that sort can possibly work for an even number of sides (because the diameter would have to be larger "between corners" than "in the middle of the side").
answered Apr 1 at 17:59
Gareth McCaughan♦Gareth McCaughan
66.9k3169260
$endgroup$
I'm not entirely sure this is exactly a puzzle (but also not sure enough to suggest closing the question or anything). Anyway, I guess the reason is that
it's useful for them to be shapes of constant width (so that, e.g., they can go nicely into machines that accept coins for payment), and there's a nice simple construction for those that gives you a regular-polygon-ish shape with any odd number of sides; but nothing of that sort can possibly work for an even number of sides (because the diameter would have to be larger "between corners" than "in the middle of the side").
answered Apr 1 at 17:59
Gareth McCaughan♦Gareth McCaughan
66.9k3169260
answered Apr 1 at 17:59
Gareth McCaughan♦Gareth McCaughan
66.9k3169260
answered Apr 1 at 17:59
Gareth McCaughan♦Gareth McCaughan
66.9k3169260
answered Apr 1 at 17:59
Gareth McCaughan♦Gareth McCaughan
66.9k3169260
66.9k3169260
1
$begingroup$
relevant link: Reuleaux polygons.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:05
add a comment |
1
$begingroup$
relevant link: Reuleaux polygons.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:05
1
1
$begingroup$
relevant link: Reuleaux polygons.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:05
$begingroup$
relevant link: Reuleaux polygons.
$endgroup$
– Geoffrey Brent
Apr 2 at 6:05
add a comment |
$begingroup$
Looking at this:
CoinBrothers
it is rarely true.
For example, Australia 2019:
https://coin-brothers.com/catalog/coin3771
answered Apr 1 at 18:09
JonMark PerryJonMark Perry
20.6k64099
$endgroup$
1
$begingroup$
@DrXorile; there's more recent later on
$endgroup$
– JonMark Perry
Apr 1 at 18:19
$begingroup$
I wonder how all these machines do in vending machines. Must make it tricky.
$endgroup$
– Dr Xorile
Apr 2 at 19:49
$begingroup$
@DrXorile The Australian 50c piece has been around in its current shape since 1969. I understand there are a few vending machines that don't accept it, but I can't recall ever encountering one, and by my understanding the issue is with its size rather than the shape. It's about 32 mm across, much larger than any other Australian coin, so distinguishing it from others isn't a challenge but everything has to be larger to accommodate it.
$endgroup$
– Geoffrey Brent
Apr 3 at 1:44
add a comment |
$begingroup$
Looking at this:
CoinBrothers
it is rarely true.
For example, Australia 2019:
https://coin-brothers.com/catalog/coin3771
answered Apr 1 at 18:09
JonMark PerryJonMark Perry
20.6k64099
$endgroup$
1
$begingroup$
@DrXorile; there's more recent later on
$endgroup$
– JonMark Perry
Apr 1 at 18:19
$begingroup$
I wonder how all these machines do in vending machines. Must make it tricky.
$endgroup$
– Dr Xorile
Apr 2 at 19:49
$begingroup$
@DrXorile The Australian 50c piece has been around in its current shape since 1969. I understand there are a few vending machines that don't accept it, but I can't recall ever encountering one, and by my understanding the issue is with its size rather than the shape. It's about 32 mm across, much larger than any other Australian coin, so distinguishing it from others isn't a challenge but everything has to be larger to accommodate it.
$endgroup$
– Geoffrey Brent
Apr 3 at 1:44
add a comment |
$begingroup$
Looking at this:
CoinBrothers
it is rarely true.
For example, Australia 2019:
https://coin-brothers.com/catalog/coin3771
answered Apr 1 at 18:09
JonMark PerryJonMark Perry
20.6k64099
$endgroup$
Looking at this:
CoinBrothers
it is rarely true.
For example, Australia 2019:
https://coin-brothers.com/catalog/coin3771
answered Apr 1 at 18:09
JonMark PerryJonMark Perry
20.6k64099
edited Apr 1 at 18:19
answered Apr 1 at 18:09
JonMark PerryJonMark Perry
20.6k64099
answered Apr 1 at 18:09
JonMark PerryJonMark Perry
20.6k64099
answered Apr 1 at 18:09
JonMark PerryJonMark Perry
20.6k64099
20.6k64099
1
$begingroup$
@DrXorile; there's more recent later on
$endgroup$
– JonMark Perry
Apr 1 at 18:19
$begingroup$
I wonder how all these machines do in vending machines. Must make it tricky.
$endgroup$
– Dr Xorile
Apr 2 at 19:49
$begingroup$
@DrXorile The Australian 50c piece has been around in its current shape since 1969. I understand there are a few vending machines that don't accept it, but I can't recall ever encountering one, and by my understanding the issue is with its size rather than the shape. It's about 32 mm across, much larger than any other Australian coin, so distinguishing it from others isn't a challenge but everything has to be larger to accommodate it.
$endgroup$
– Geoffrey Brent
Apr 3 at 1:44
add a comment |
1
$begingroup$
@DrXorile; there's more recent later on
$endgroup$
– JonMark Perry
Apr 1 at 18:19
$begingroup$
I wonder how all these machines do in vending machines. Must make it tricky.
$endgroup$
– Dr Xorile
Apr 2 at 19:49
$begingroup$
@DrXorile The Australian 50c piece has been around in its current shape since 1969. I understand there are a few vending machines that don't accept it, but I can't recall ever encountering one, and by my understanding the issue is with its size rather than the shape. It's about 32 mm across, much larger than any other Australian coin, so distinguishing it from others isn't a challenge but everything has to be larger to accommodate it.
$endgroup$
– Geoffrey Brent
Apr 3 at 1:44
1
1
$begingroup$
@DrXorile; there's more recent later on
$endgroup$
– JonMark Perry
Apr 1 at 18:19
$begingroup$
@DrXorile; there's more recent later on
$endgroup$
– JonMark Perry
Apr 1 at 18:19
$begingroup$
I wonder how all these machines do in vending machines. Must make it tricky.
$endgroup$
– Dr Xorile
Apr 2 at 19:49
$begingroup$
I wonder how all these machines do in vending machines. Must make it tricky.
$endgroup$
– Dr Xorile
Apr 2 at 19:49
$begingroup$
@DrXorile The Australian 50c piece has been around in its current shape since 1969. I understand there are a few vending machines that don't accept it, but I can't recall ever encountering one, and by my understanding the issue is with its size rather than the shape. It's about 32 mm across, much larger than any other Australian coin, so distinguishing it from others isn't a challenge but everything has to be larger to accommodate it.
$endgroup$
– Geoffrey Brent
Apr 3 at 1:44
$begingroup$
@DrXorile The Australian 50c piece has been around in its current shape since 1969. I understand there are a few vending machines that don't accept it, but I can't recall ever encountering one, and by my understanding the issue is with its size rather than the shape. It's about 32 mm across, much larger than any other Australian coin, so distinguishing it from others isn't a challenge but everything has to be larger to accommodate it.
$endgroup$
– Geoffrey Brent
Apr 3 at 1:44
add a comment |
$begingroup$
Note that
The puzzle was posted on April 1st, a.k.a. April's Fools day
It turns out that
The post contains several falsehoods.
For example,
"An example" refers to an image with three coins. It is not in fact universally true that all coins are odd-sided (thanks JonMark Perry).
Indeed,
This question is not in fact a trivia question, but an Aprils Fools puzzle.
The answer is obviously
That I'm reading way too much into this. Possible ideas: "odd" refers to "odd one out". From the three coins, the larger 50p is no longer in production. The 20p is of a different denomination. The orientation in the picture may not be random. But somehow it should all link back to the coins being (roughly) polygonal...
answered Apr 2 at 14:28
SanchisesSanchises
21117
$endgroup$
$begingroup$
Rot13: creuncf pbafvqre gung bqq pna zrna crephyvne be hahfhny.
$endgroup$
– Aaron Hayman
Apr 2 at 15:59
$begingroup$
Love it. I wish I were that clever...
$endgroup$
– Dr Xorile
Apr 2 at 19:48
$begingroup$
@DrXorile Aww man! I really thought there was a "Modern Polygonal Coin™" puzzle in here...
$endgroup$
– Sanchises
Apr 2 at 19:52
add a comment |
$begingroup$
Note that
The puzzle was posted on April 1st, a.k.a. April's Fools day
It turns out that
The post contains several falsehoods.
For example,
"An example" refers to an image with three coins. It is not in fact universally true that all coins are odd-sided (thanks JonMark Perry).
Indeed,
This question is not in fact a trivia question, but an Aprils Fools puzzle.
The answer is obviously
That I'm reading way too much into this. Possible ideas: "odd" refers to "odd one out". From the three coins, the larger 50p is no longer in production. The 20p is of a different denomination. The orientation in the picture may not be random. But somehow it should all link back to the coins being (roughly) polygonal...
answered Apr 2 at 14:28
SanchisesSanchises
21117
$endgroup$
$begingroup$
Rot13: creuncf pbafvqre gung bqq pna zrna crephyvne be hahfhny.
$endgroup$
– Aaron Hayman
Apr 2 at 15:59
$begingroup$
Love it. I wish I were that clever...
$endgroup$
– Dr Xorile
Apr 2 at 19:48
$begingroup$
@DrXorile Aww man! I really thought there was a "Modern Polygonal Coin™" puzzle in here...
$endgroup$
– Sanchises
Apr 2 at 19:52
add a comment |
$begingroup$
Note that
The puzzle was posted on April 1st, a.k.a. April's Fools day
It turns out that
The post contains several falsehoods.
For example,
"An example" refers to an image with three coins. It is not in fact universally true that all coins are odd-sided (thanks JonMark Perry).
Indeed,
This question is not in fact a trivia question, but an Aprils Fools puzzle.
The answer is obviously
That I'm reading way too much into this. Possible ideas: "odd" refers to "odd one out". From the three coins, the larger 50p is no longer in production. The 20p is of a different denomination. The orientation in the picture may not be random. But somehow it should all link back to the coins being (roughly) polygonal...
answered Apr 2 at 14:28
SanchisesSanchises
21117
$endgroup$
Note that
The puzzle was posted on April 1st, a.k.a. April's Fools day
It turns out that
The post contains several falsehoods.
For example,
"An example" refers to an image with three coins. It is not in fact universally true that all coins are odd-sided (thanks JonMark Perry).
Indeed,
This question is not in fact a trivia question, but an Aprils Fools puzzle.
The answer is obviously
That I'm reading way too much into this. Possible ideas: "odd" refers to "odd one out". From the three coins, the larger 50p is no longer in production. The 20p is of a different denomination. The orientation in the picture may not be random. But somehow it should all link back to the coins being (roughly) polygonal...
answered Apr 2 at 14:28
SanchisesSanchises
21117
edited Apr 2 at 17:33
answered Apr 2 at 14:28
SanchisesSanchises
21117
answered Apr 2 at 14:28
SanchisesSanchises
21117
answered Apr 2 at 14:28
SanchisesSanchises
21117
21117
$begingroup$
Rot13: creuncf pbafvqre gung bqq pna zrna crephyvne be hahfhny.
$endgroup$
– Aaron Hayman
Apr 2 at 15:59
$begingroup$
Love it. I wish I were that clever...
$endgroup$
– Dr Xorile
Apr 2 at 19:48
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@DrXorile Aww man! I really thought there was a "Modern Polygonal Coin™" puzzle in here...
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– Sanchises
Apr 2 at 19:52
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Rot13: creuncf pbafvqre gung bqq pna zrna crephyvne be hahfhny.
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– Aaron Hayman
Apr 2 at 15:59
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Love it. I wish I were that clever...
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– Dr Xorile
Apr 2 at 19:48
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@DrXorile Aww man! I really thought there was a "Modern Polygonal Coin™" puzzle in here...
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– Sanchises
Apr 2 at 19:52
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Rot13: creuncf pbafvqre gung bqq pna zrna crephyvne be hahfhny.
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– Aaron Hayman
Apr 2 at 15:59
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Rot13: creuncf pbafvqre gung bqq pna zrna crephyvne be hahfhny.
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– Aaron Hayman
Apr 2 at 15:59
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Love it. I wish I were that clever...
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– Dr Xorile
Apr 2 at 19:48
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Love it. I wish I were that clever...
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– Dr Xorile
Apr 2 at 19:48
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@DrXorile Aww man! I really thought there was a "Modern Polygonal Coin™" puzzle in here...
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– Sanchises
Apr 2 at 19:52
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@DrXorile Aww man! I really thought there was a "Modern Polygonal Coin™" puzzle in here...
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– Sanchises
Apr 2 at 19:52
add a comment |
3
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Have a look here and here
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– ielyamani
Apr 1 at 22:15
4
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Not an answer, but almost a contradiction: Pieces of eight
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– humn
Apr 2 at 1:57
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Not universally true. Australian 50c piece is ten-sided.
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– Geoffrey Brent
Apr 2 at 6:01
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This seems to be a trivia question, not a puzzle...
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– Chris
Apr 2 at 11:18
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@user477343 consider Zeno's paradox :) -- However a polygon is made of a finite amount of edges by definition, so a circle (or any curved shape) still isn't a polygon.
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– Quentin
Apr 2 at 12:39