Pyramid
pyramid
A triangular based pyramid would fit the given description
a polygonal prism or a polygond
A solid figure with a polygonal base and triangular faces that meet at a common point.
It is a pyramid
pyramid
Pyramid
pentagonal pyramid
A polygonal pyramid.
pyramid
pyramid
A triangular based pyramid would fit the given description
A 3D shape with one base and three faces can only have triangular faces.
a polygonal prism or a polygond
A solid figure with a polygonal base and triangular faces that meet at a common point.
it's a pyramid with 5 sides.