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ArbitrLikvidat [17]
3 years ago
10

A compnay has a spherical storage tank which is in need of painting. The radius of the tank is 36ft. The type of paint used will

cover approximatley 160 square feet per a gallon. How many gallons of paint will be needed? ( not:paint can only be purchased in full gallons.)
Mathematics
1 answer:
Alexxandr [17]3 years ago
7 0
The surface area of a sphere is:  4pr^2

(4p(36^2)ft^2)(gal/160ft^2)

(5184p ft^2)(gal/160ft^2)=32.4p gal which is approximately:

101.78 gal

So the company must purchase 102 gallons of paint.
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