A pentagon based pyramid.
It will have 6 faces including its base face
That could be a pentagonal pyramid.
Six - five triangular faces above the base, and then the pentagon base itself counts as a face.
sphere
A pentagon-based pyramid
A pentagon based pyramid.
It will have 6 faces including its base face
A pyramid with an irregular pentagon base.
A pentagonal is pentagon. As pentagon is 2D shape or object so it is having only one face.
That could be a pentagonal pyramid.
The bottom or (Base) of a shape. Example...
a pentagonal pyramid
A pentagon has 5 edges. Shaped a bit like a muffin cake. e.g: http://www.taospaint.com/Construct/pentagon.gif
Yes.
Six - five triangular faces above the base, and then the pentagon base itself counts as a face.
A regular dodecahedron, for example. Each face is a regular pentagon so no face has parallel sides. However, the edges on opposite faces are parallel to one another.