Question

Find the volume of a pyramid with a square base, where the perimeter of the base is

17 cm and the height of the pyramid is 15 cm. Round your answer to the nearest
tenth of a cubic centimeter.

Answer 1

90.3125 cm³

Explanation:

Since the perimeter of the bottom square is 17, you can divide by four to find out what the lenght of each side is.

17/4=4.25 cm

We know the height of pyramid is 15 cm

The formula for the volume of a square pyramid is

V=a²(h/3)

V=a2(h/3)=4.252·15/3=90.3125 cm³