what is the minimum radius of canopy required for a beech with trunk diameter 2 meters

Question

A nature breech tree requires at least 20m²  of exterior canopy area per cubic meter of trunk volume. model the canopy with a hemisphere, and model the trunk using a cylinder whose height is three times its diameter. 

Answer 1

d = 2

h = 6

V = π(1)²(6)

V = 6π

 

Canopy = 20(6π)

Canopy = 120π

 

The tree needs 120π square meters of canopy.