A road roller takes 500 complete revolutions to move once over to level a road.
Find the area of the road if the diameter of a road roller is 42 cm and its length is 1 m.
(use n =
22/7)
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Answer:
660m^2 Answer
Step-by-step explanation:
Diameter = 42cm
Radius = 42/2 = 21cm
length = 100cm
C.S.A. = 2πrh = 2×22/7×21×100
= 13,200cm^2
Area of road = C.S.A. × Revolutions
= 13,200 × 500
= 6,600,000cm^2
In meter = 6,600,000/10000
= 660m^2 Answer
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