A gardener wants to fence a circular garden of diameter 28m.Find the cost of the rope he wants to purchaseif 1m rope costs 25rs.Also find the area of the garden (pi=22/7)
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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)
Solution:
Diameter of the circular garden = 21 m
Radius of the circular garden = 21/2 m
Circumference of circular garden = 2πr
= 2 × 22/7 × 21/2 m
= 66 m
Since, the gardener wants to make 2 rounds of fence, so the total length of the rope required for fencing = 2 × 66 m = 132 m
The cost of 1 meter rope = ₹4
Therefore, the cost of 132 meter rope = 4 × 132 = ₹ 528
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