Question

The volume of a rectangular pyramid is 252 unitscubed 3 . If the length of the rectangular base measures 7 units and the width of the rectangular base measures 12 units, find the height of the pyramid.

Answer 1

.V pyramid =1/3(base area*h)

base = rectangle

Area = 12*7 = 84cm²

we know the volume = 252cm^3

we are looking for height

252 =(84*height)/3

252*3 = 84*height

756 = 84*height

height = 756/84=9cm