triangle * * * * * A triangle is NOT a 3d shape! A cube.
The vertex of a 3D pentagon is 10. :)
is it a vertex
A circle is not a 3D figure because it only has two dimensions. A sphere is a 3D "circle".
cylinder: 3 faces, 2 edges, no vertex
I think this means, what is the plural of vertex?? If so, then the answer - vertices. My daughter and I searched for ages thinking the question was looking for the name of a 3d shape!!