Question

A road roller takes 500 complete revolutions to move once over to lavel a road Find the area
of the road, if the diameter of the road roller is 70 cm and its length is 1 m.​

Answer 1

Answer:

Length=1m=100cm

Diameter=70cm

Radius=70/2=35cm

Curved Surface area=2πrh

=2×22/7×35×100

=2×22×5×100=22000cm^2

Area of road=22000×500=11000000cm^2=1100m^2

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

Diameter = 70cm

Radius(r) = 70/2 = 35cm

Height(h) = 1m = 100m

Curved Surface Area of roller = 2πrh

=2×22/7×35×100

=22000cm2

No. of revolutions = 500

Area of road =500×22000

=11000000cm2

=1100m2