A cone has a round base and a narrowing round top. I hope this answers your question!
pyramid
8 lateral faces and a base
8
cone; circle is the base
Perimeter of base*Length of prism.
pyramid
A pyramid
Such a figure is a pyramid.
It is a pyramid
The figure is a pyramid and the base is a square.
A pyramid
lateral faces
A 3D shape with one base and three faces can only have triangular faces.
pyramid
pentagonal pyramid
Pyramid
A pyramid.