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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.
A pyramid with an irregular pentagon base.
It will have 6 faces including its base face
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 shape with 5 vertices and 5 faces could be a pyramid with a square base, where each face is a triangle (including the base).
a pentagonal pyramid
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.