Question

A road roller takes 630 revolutions to make once over to a level a road. Find the area of the road if the diameter of the road roller is 54cm and length is 1m

Answer 1

Answer:

Your answer is 1069.2m^2

Step-by-step explanation:

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Answer 2

ANSWER

Area of road =750× area covered in 1 revoluation

=750× lateral surface area of cylinder

=750×2πrh

Given,  d=84cm⇒r=42cm→10042m

h=1m

=750×2×722×10042×1

=1001500×132

=1980m2