Question

9. Find the dimensions of the

4 triangular faces of the pyramid.
(Height is 55.5 ft)
​

Answer 1

`Q=(\pi)/(2)*55.5ft=87.18ft\\P=87.18ft*\sqrt{(1)/(2)+(16)/(\pi ^(2))}=87.18*0.9515=82.95ft\\`

Explanation:

We have a 4-sided triangular pyramid , where

`Q=(\pi)/(2)*H\\P=Q*\sqrt{(1)/(2)+(4)/(\pi ^(2))}\\Q=(\pi)/(2)*55.5ft=87.18ft\\P=87.18ft*\sqrt{(1)/(2)+(16)/(\pi ^(2))}=87.18*0.9515=82.95ft\\`