Question

A diameter of a roller is 84 cm and its length is 120cm it takes 500 complete revolution to move once over to level a playground . find the area of the playground in
${m}^{2}$


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Answer 1

Step-by-step explanation:

area of circle is πd²/4

diameter is 84cm

circumference is 120cm

area=π×84²/4

22/7×7056×1/4

5544m²

Answer 2

Answer:

15.84m×2

Step-by-step explanation:

area level in 1 revolution = 2×pi×r........1

area in 500 revolution = 1×500