12. The volume of a right circular cylinder is 4481 cm² and height 7 cm. Find the
lateral surface area and total surface area.
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Step-by-step explanation:
V = πr²h
4481 = (22/7)(r²)7
4481/22 = r²
r = √203.68
= 14.27
Lateral surface area = 2πrh
= 6.28*(14.27)*7
= 627.3 cm²
Total surface area = 2πr² + LSA
= 6.28(14.27)² + LSA
= 1,278.814612+ 627.3
= 1,906.114612 cm²
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