A road roller takes 500 complete revolutions to move once over to level a road. find the area of road if the diameter of a road roller is 42 cm and length is 1 m.
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Answer:
1980 sq m
Step-by-step explanation:
D=84 cm,l=1m
r=42cm
Area of road covered in 1 revolution =2πrl =2 × 22/ 7 ×42 × 1 = 264/100 sq m
Area of road covered in 750 revolution = 750×( 264/ 100)
= 1980 sq m
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