A gardener wants to fence a circular garden of diameter 21m. Find the length of the rope he needs to purchase, if he makes 2 rounds of fence. Also find the cost of the rope, if it costs ₹ 4 per meter. (Take π = 22/7)
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Step-by-step explanation:
Given that circumference of circle = 154 m i.e 2 π r = 154 ⇒ r = 154 / 2 π ⇒ r = 154 x 7 / 2 x 22. ⇒ r = 49 / 2 = 24.5 m ∴ radiu of circle = 24.5 m Area of circle A = π r2 A = π x 49 / 2 x 49 / 2 = 3773 / 2 = 1886.5 m2 .
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Step-by-step explanation:
A gardener wants to fence a circular garden of diameter 21m. Find the length of the rope he needs to purchase, if he makes 2 rounds of fence. Also find the cost of the rope, if it costs ₹ 4 per meter. (Take π = 22/7) - 7
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