Pyramid is a structure of a polygon with the upper part converging to a fixed point. The converging fixed point is called apex.
There are mainly two parts for a pyramid. They are apex and base. Apex is the converging fixed point and the bottom part of the pyramid is called base of the pyramid.
Pyramids are usually named according to their bases. The important types of pyramids are1)
Pyramids are again divided into oblique and regular based on the shape of the base.
Lets consider Pentagonal pyramid.
A pyramid with a Pentagonal base is called Pentagonal pyramid.
The figure of a triangular pyramid is shown below
Pentagonal Pyramid Faces
A pentagonal pyramid has 6 faces. Top you can see 5 sides faces which are triangular in shape and base which is a pentagon.