# what is a twelve sided shape called?

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dodecahedron

• Anonymous

4- Square;

5- Pentagon;

6- Hexagon;

7- Heptagon;

8 -Octagon;

9- Enneagon;

10- Decagon;

11- Hendecagon;

12- Dodecagon;

• Meghan
Lv 4
4 years ago

In geometry, a 20-sided geometric figure is called a Icosagon. The interior angle of a regular icosagon is 162°. The sum of any icosagon's interior angles is 3240 degrees. ((A Dodecahedron is a polyhedron with twelve faces)).

12 sided shape - DODECAHEDRA. This describes a 12 sided shape where all the internal angles are equal. If you want ther names for other Polyhedra then try the undernoted.

http://www.georgehart.com/virtual-polyhedra/dodeca...

dodecagon is a twelve sided 2d shape.

dodecahedron is a twelve sided 3d figure

• Anonymous

There are a great many 12-sided polyhedra, all of which could be called dodecahedra.

• Doug B
Lv 4

Vanessa Feltz!

I always knew it as a duodecagon but I see from the rest of the answers I must be wrong, or am I?

I knew the answer but would not have had a hope in hell of spelling it, but the two people at the top are right.