i've been referring to dreamincode for a while that i thought we owned dic.net.
what do you call a 3D shape which has faces all of the same number of sides?
is there a formula for knowing the number of faces?
i feel this isn't enough to start a new topic
3D shape name
Page 1 of 16 Replies  1342 Views  Last Post: 25 June 2012  12:45 PM
Replies To: 3D shape name
#2
Re: 3D shape name
Posted 25 June 2012  07:07 AM
#3
Re: 3D shape name
Posted 25 June 2012  08:24 AM
Learn something new every day.
I always thought a platonic solid was when your friend did you a really big favor, like being interested in the fat one so you can ask the hot one out.
I always thought a platonic solid was when your friend did you a really big favor, like being interested in the fat one so you can ask the hot one out.
#4
Re: 3D shape name
Posted 25 June 2012  08:34 AM
Oh, I forgot to point out the Kepler Poinsot Polyhedra:
http://en.wikipedia....insot_polyhedra
Any of which are called a 'regular polyhedron'
http://en.wikipedia....ular_polyhedron
What innuendo can we attach to that name?
http://en.wikipedia....insot_polyhedra
Any of which are called a 'regular polyhedron'
http://en.wikipedia....ular_polyhedron
What innuendo can we attach to that name?
This post has been edited by lordofduct: 25 June 2012  08:36 AM
#5
Re: 3D shape name
Posted 25 June 2012  08:38 AM
Hmmm... Poly: More than one... So polyhedra would be more than one instance of hed: That's always a good thing.
For the rest... I got nothin'
For the rest... I got nothin'
#6
Re: 3D shape name
Posted 25 June 2012  11:49 AM
olibenu, on 25 June 2012  07:15 AM, said:
i've been referring to dreamincode for a while that i thought we owned dic.net.
what do you call a 3D shape which has faces all of the same number of sides?
is there a formula for knowing the number of faces?
i feel this isn't enough to start a new topic
what do you call a 3D shape which has faces all of the same number of sides?
is there a formula for knowing the number of faces?
i feel this isn't enough to start a new topic
If there is a formula that will tell you the number faces from the number of sides on each face it will probably not give you a complete answer. For example, a tetrahedron, octahedron, and icosahedron (20) can all be made of equilateral triangles.
#7
Re: 3D shape name
Posted 25 June 2012  12:45 PM
I have a formula, it's in their names...
tetrahedron  tetra means 4
hexahedron  hexa means 6
octahedron  octa means 8
dodecahedron  do (two), deca(10), dodeca (12)
icosahedron  icosa means 20
As for the concave keplerpoinsot polyhedra, no, because each shape is concave and are named after the Platonic Solid they are stellating. Though of course if you know the specific way you've stellated, and the starting platonic solid, then yes... you should be able to figure it out algorithmically.
tetrahedron  tetra means 4
hexahedron  hexa means 6
octahedron  octa means 8
dodecahedron  do (two), deca(10), dodeca (12)
icosahedron  icosa means 20
As for the concave keplerpoinsot polyhedra, no, because each shape is concave and are named after the Platonic Solid they are stellating. Though of course if you know the specific way you've stellated, and the starting platonic solid, then yes... you should be able to figure it out algorithmically.
This post has been edited by lordofduct: 25 June 2012  12:47 PM
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