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 road roller is 84 cm and length is 1 m
Answers
Answered by
49
Answer:
Step-by-step explanation:
Diameter of road roller = 84 cm
Radius of road roller = 84/2 = 42 cm
Length of road roller = 1 m = 100 cm
no. of revolutions = 750
Area of road = CSA of road roller * 750
= 2 * pi * r * h * 750
= 2 * 22/7 * 42 * 100 * 750
= 2 * 22 * 6 * 100* 750
= 44 * 600 * 750
Area of road = 1,98,00,000 cm^2
Alfred003:
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Answered by
17
Answer:
Step-by-step explanation:
Area covered in 1 revolution =curved surface area of cylinder(road roller)
=>2*22/7*42*100
Area covered in 750 revolutions =750*curved surface area of road roller
=>1,98,00,000cm^2
Sorry it should be cm^2
fantastic
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