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A road roller take 750 compleat …

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A road roller take 750 compleat revolution to move once over to leval a road . Find the area of road if the diameter of road roller is 84cm and its length is 1m

Posted by Nikhil Kumar Singh 5 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 5 years, 9 months ago

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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