Question

if a diameter of a road roller is 0.9m and its length is1.4m how much area of field will be pressed in its 500 rotation

Answer 1

use 2πrh ×500

=2×22/7×0.9/2×1.4×500



hope it helps

Answer 2

area=CSA of roller×500
area=π×r×r×h×500
area=π×0.9×0.9×1.4×500
area=1781.283cmsq
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