9. A road roller takes 750 complete revolutions to move once over to level a road. Find the
area of the road if the diameter of a road roller is 84 cm and length 1 m.
Answers
Answered by
20
Answer:
D=84cm
R=42cm
2πrh=
2x22/7x42x1
=44x6
264 cm
750x264
198000cm
1980m
Brainliest please
Answered by
5
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
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