A gardener wants to fence a circular garden of radius 7m. Find the length of the rope he needs to purchase, if he makes 2 rounds of fence.
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Answers
Answered by
8
Answer:
Rs.528
Explanation:
Diameter of the circular garden=21m
∴ Radius of the circular garden=221m
Now, circumference of circular garden=2πr=2×722×221
=22×3=66m
The gardener makes 2 rounds of fence so the total length of the rope of fencing =2×2πr=2×66=132m
Since the cost of 1 meter rope=Rs. 4
Therefore, cost of 132 meter rope=4× 132=Rs. 528.
Answered by
2
Explanation:
radius= 7m
sircumfrence of circle=2πr
=2×22/7×7
=44m
2 round =2×44
=88m
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