What is the volume of a square pyramid with base edges of 90 yards and a height of 20 yards? 36,000 yd3 162,000 yd3 54,000 yd3 1,800 yd3

The volume of a pyramid with a square
base is given by V=a^2 (h/3) where a is the length of a side of the base and h is the height of the pyramid.

Here the sides of the base measure 90 yards and the height is 20 yards. That is a=90 and h=20.

Thus, Volume = (90^2)(20/3)= (8100 x 20) /3 = 54,000 cubic yards.