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Firlakuza [10]
3 years ago
13

A cylindrical tank has a radius of 4.5 ft and an altitude of 14 ft. If a gallon of paint will cover 130 ft squared ft2 of​ surfa

ce, how much paint in gallons is needed to put two coats of paint on the entire surface of the​ tank? Aswer: To put two coats of paint on the entire surface of the​ tank, ______ full gallons of pain are needed.
Mathematics
2 answers:
motikmotik3 years ago
7 0
You would need 11 cans of paint to cover it twice

Eva8 [605]3 years ago
4 0
Surface area = 2*area circle + area lateral side

circle area = pi * 4.5 * 4.5 = 63.585
circle circumference = 2*pi*4.5 = 28.26
lateral area = 28.26 * 14 =395.64

surface area = 63.585*2 + 395.64 = 522.81

522.81/130 = 4.02gallons

2*4.02= 8.04

<span>To put two coats of paint on the entire surface of the​ tank, EIGHT full gallons of pain are needed.</span>
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