The diameter of a 120 cm long roller is 84 cm. It takes 1000 complete revolutions moving once over
to level a playground. What is the area of the playground?
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3
Step-by-step explanation:
the answer will be 220000m^2
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Answer:
Dimensions:
Length = 120 cm
Diameter = 84 cm
Radius = d/2 = 42 cm
Number of revolutions = 1000
Area covered in one revolution =
= 2 × 22/7 × 42 × 120
= 31680 sq cm
Area covered in 1000 revolutions = 66528 × 1000
= 31680000 sq cm
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