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 the road roller is 84 cm and length is 1 m
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Answer:Length of roller = 1m = 100cm
Circumference of roller = π x D = 22/7 X 84 = 264 cm
Length of road = 264 x 750 = 198000 cm
Width of road = length of roller = 100 cm
Area of road = 198000 x 100 = 19,800,000 cm² or 1980 m²
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