SOLUTION: if 1 gallon of paint covers 400 square feet, about how many gallons of paint are needed to paint the outside of a spherical tank of diameter of 20 feet?

SOLUTION: if 1 gallon of paint covers 400 square feet, about how many gallons of paint are needed to paint the outside of a spherical tank of diameter of 20 feet?

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Question 251066: if 1 gallon of paint covers 400 square feet, about how many gallons of paint are needed to paint the outside of a spherical tank of diameter of 20 feet?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
find the area of the sphere.
divide that by 400

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