Math, asked by Myester, 2 months ago

A rectangular sheet of dimensions 20cm × 7cm is rotated about its longer side. Find the volume and the total surface area of the solid thus generated.

Answers

Answered by rakeshkushwaha379057

3

Answer:

Height of cylinder=7

perimeter of cylinder=25

thus curved surface area =2πrh=25×7=175cm

2

Ellawatson: But the question is saying that it is a rectangular sheet then why cylinder?

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