Question

find the area covered by the road roller of width 80cm diameter 140cm in 40 revolution​

Answer 1

Answer:

Curved surface area of cylinder=2πrh

=2π(70)(80)=35200cm² =3.52m ²

Area of 40 revolutions=3.52×40=140.8m²

Answer 2

Answer:

1•The radius of roller is 70 cm.

2•The csa of cylindrical roller is 35200 cm².

3•The area covered by roller in 40 4•revolutions is 1408000 cm².

Step-by-step explanation:

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