Why don't they use rectangular prisms for dice?

They do, just they are not traditional. I think they may be easier to cheat with, as you could angle a throw to bring up numbers from only one side of a prism.

 

Plus, a square is cheaper to produce.

hmm.... it won't be fair, cause the landing on the rectangular faces is of a higher probability that on the square faces.

 

 

i doubt an rectangular dice would even roll.

What about a spherical dice? never see any of those

well, i actually have one of those!! REALLY!! I bought them when i went to England. It really can (notice i said 'can') be played with. It has a little ball inside it which gives it a weight to stop at a point. I haven't broken it! If u just jingle it a little you can here a 'tick, tick' sound, so that is my hunch!

sounds like loaded dice to me, but the weight`s come loose

 

I was thinking about a "rectangular prism" the only thing I came up with as a picture was a standard prism, 5 sides, a triangular cross section and squared at the ends, making a front veiw look like a rectangle, but wouldn`t you need 2 of them for all 6 numbers?

and then what do you do if one rolls a 3 and the other 6 LOL

I'd suspect that the spherical die (it's not dice fellas, that's the plural) of, say, 20 sides would have a 20 sided interior, and the weight comes to rest on one of them.

 

A rectangular die would roll, just not as well or as much.

YT2095 said in post # :

I was thinking about a "rectangular prism" the only thing I came up with as a picture was a standard prism, 5 sides, a triangular cross section and squared at the ends, making a front veiw look like a rectangle, but wouldn`t you need 2 of them for all 6 numbers?

and then what do you do if one rolls a 3 and the other 6 LOL

 

A rectangular prism is a cuboid. There's even a picture of one IN THE THREAD.

YT2095 said:sounds like loaded dice to me, but the weight`s come loose

 

Take a look at the diagram! I think u misunderstood me!

here's what is REALLY looks like (i managed to find it!)

Oh, and don't forget that normal dice are rectangular prisms too.

yeah! or a squarical prism!!!

To generalise, normal dice are always regular solids.

hmmmm.... what do u think of my spherical dice. Pretty awkward isn't it?

aommaster said in post # :

hmmmm.... what do u think of my spherical dice. Pretty awkward isn't it?

 

Spherical die.

 

And I've seen them before.

sorry, i keep on saying dice!!!! i have other shaped ones as well, i have a triangular one and some other shapes!

aommaster said in post # :

sorry, i keep on saying dice!!!! i have other shaped ones as well, i have a triangular one and some other shapes!

 

Tetrahedral, technically. AKA a D4.

hmmmm... have a look at this site

http://www.mathpuzzle.com/Fairdice.htm

 

have a look and tell me what u think

aommaster said in post # :

hmmmm... have a look at this site

http://www.mathpuzzle.com/Fairdice.htm

 

have a look and tell me what u think

 

What about it?

it has all the possible shapes to make a dice fair. Pretty interesting to me!

hmm.... it won't be fair' date=' cause the landing on the rectangular faces is of a higher probability that on the square faces.

 

 [/quote']

 

 

really, you think,

 

give him a medal

 

lol

 

MD did you want me to expalin probabilities to you?

No thank you IT all depends on the surface area of each face, that's all to make it simple!

And i suppose Fluent in Lies is a mathematician?