the volume of a cylinder is 175πcm and its height is 7cm. find the areas of its total surface and lateral (curved)surface
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Answer:
CSA = 70π TSA = 120π
Step-by-step explanation:
Volume of a cylinder = πr^2 * h
175 π = π * r^2 * 7
7r^2 = 175
r^2 = 25
r = 5 cm
CSA = 2πrh
CSA = 2(π)(5)(7)
CSA = 70π
TSA = 2πrh + 2πr^2
TSA = 70π + 50π
TSA = 120π
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