The diameter of roller is 120 cm and its height is 1 m.It takes 500 complete revolution to move once over to level a playground.F ind the area of the playground in m^2.
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Answer:
Area of playground is 3768 sq. metres.
Step-by-step explanation:
Given :
R = 1.2 m
h = 1 m
n = 500
Sol :
CSA of Cylinder = 2πRh
= 2× 3.14 × 1.2 × 1
= 7.536 m²
Area of playground = n × CSA of Cylinder
= 500 × 7.536
= 3768 m²
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