Question

When completely filled, a spherical storage tank

holds 7,240 A of propane. What is the radius of
the tank?

Answer 1

radius: 12

Given the following:

Volume of sphere: 7,240

Formula of volume of sphere:

Volume = 4/3 π (radius)³

Find radius:

• 4/3 π (radius)³ = 7,240

change sides

• (radius)³ = 7,240/(4π/3)

simplify

• (radius)³ = 1728.422682

cube root on both sides

• radius = ∛1728.422682

simplify

• radius = 12