Q41 of 62 Page 22

A hollow garden roller, 63 cm wide with a girth of 440 cm, is made of 4 cm thick iron. Find the volume of the iron.

Given,


Width of roller = 63 cm


Girth (perimeter) = 440 cm


= 2πR = 440


=


= R=


thickness of roller = 4 cm


inner radius = R - thickness = 70 - 4 = 66 cm


Volume of cylindrical iron =


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