a 3D pentagon
A pentagonal prism will have 15 edges.
a pentagonal pyramid or a pentagonal prisim
A pentagon is a 2 dimensional object. The 3 dimensional object, with 12 pentagonal faces, is called a dodecahedron.
If you are thinking of a solid with pentagonal faces, a dodecahedron, there are twelve pentagons
pentagon A pentagon. A 5-sided figure is called a pentagon. pentagon A five sided figure is called a pentagon
The vertex of a 3D pentagon is 10. :)
A 3D name for a pentagon is a pentagonal prism.
No, a pentagon is 2-D.
3D pentagonal prismPRISM
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A 3D pentagon could be called a pentagon prism or a dodecahedron which is a Platonic solid with 12 pentagonal faces.
Oh, dude, a 3D pentagon has five sides and five vertices. It's like a regular pentagon, but in 3D, so it's got some depth to it. Just imagine a 2D pentagon trying to be all fancy and three-dimensional.
pentagonal prism
15
2
A hexahedron.
Pentagon (and in 3d: triangular prism and tetrahedron.)