Answer:
57.11 m
Explanation:
The formula for the volume of a cylinder of radius r and length h is
V = πr²h. We want to solve this formula for d, the diameter of the cylinder.
Start by solving the equation V = πr²h for r²: divide both sides by πh.
V
Then r² = -------------
πh
51207 m³
Substituting 20 for h and 3.14 for π, we get r² = ------------------ or:
3.14(20 m)
r² = 815.40 m²
Find the radius by taking the square root of both sides of the previous result:
r = 28.56 m
The diameter is twice the radius, and therefore the diameter here
is d = 2(28.56) m = 57.11 m