Question

lid right pyramid has a square base. The base edge length is 2 cm longer than the height of the pyramid. If the height is 6 cm, what is the volume of the pyramid? 24 cm3 48 cm3 128 cm3 144 cm3

Answer 1

C: 128cm3

Explanation:

on edge

Answer 2

128 cm3

Explanation:

we know that

The volume of the square base pyramid is equal to

`V=(1)/(3)b^2h`

where

b is the length side of the square base

h is the height of the pyramid

we have

`h=6\ cm`

`b=h+2`

substitute the value of h

`b=6+2=8\ cm`

Find the volume

`V=(1)/(3)(8)^2(6)=128\ cm^3`