Question

A regular piece of paper is 55 cm long and 22 cm wide. If a cylinder is formed by rolling the paper along its length, then radius of the base of the cylinder is: *

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Answer 1

Answer:

Hope it helps...

Step-by-step explanation:

Area of paper = 55×22 = 1210 cm^2

Area of cylinder = 2πrh

1210 = 2×22/7× r× 55

r = (1210×7)/2×22×55

r = 3.5