Question

A road roller takes 500 complete revolution to move
once over to level a road. Find the area of the road in
sqaure metre if the diameter of a road roller is 84 cm
and length is 1 metre.​

Answer 1

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Refer to the attachment...

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Answer 2

• Length of roller = 1m=100vm

$Circumference \: of \: roller= π \times D$

$= \frac{22}{7} \times 84$

$= 264cm$

$\red{length \: of \: road = 264 \times 500 = 132000}$

$\green{width = length \: = 100cm}$

$\blue{area \: of \: road = 132000 \times 100}$

$= 13200000$