Question

What is the volume and surface area of this pyramid?

this pyramid has a height of 10, and a length of 9, and width of 9 and a slant/lateral height of 11.

Answer 1

It is a square based pyramid where,
Length (l)=9
Height (h)=10
Slant height (s)=11

For, volume (V) = 1/3 l^2*h
=1/3 9^2*10
=1/3 *810
=270


For, surface area = 2sl
= 2*11*9
=198