Answer:
pyramid is a body or structure whose outer surfaces are triangular and converge to a first step at the the top which base may be in a shape of triangle ,rectangle,square and other any shape.
Step-by-step explanation:
its volume is equal to product of area of base and height of it..
the lateral surface area of a regular pyramid is equal to the sum of the areas of its lateral faces.
the total surface area of a regular pyramid is equal to the sum of the lateral surface areas of pyramid and base.