The volume of a cylinder is 54 cm' and its height is 16 cm, what will be its curved
surface area?
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Answer:
volume = 5544 cm³kyu
height = 16 cm
volume of cylinder = πr²h
5544 = 22/7 x r² x h
5544 x 7/22 x 1/16 = r²
441/4 = r²
r = √441/4
r = 21/2 cm (10.5 cm)
curved surface area = 2πrh
= 2 x 22/7 x 21/2 x 16
= 22 x 3 x 16
= 1056 cm²².
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