the area of circular play ground is 22176 CM² . Find the cost of fencing this ground at the rate of rupees 50 per meter
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Answered by
9
Answer:
Given:
The area of a circular playground =A=22176m
2
.
To find out:
The cost of fencing the ground at the rate of Rs 50/m.
Solution:
The radius of the ground =r=
π
A
=
22
22176
×7
m=84 m.
∴ The circumference =C=2πr=2×
7
22
×84 m=528 m.
Now, the length of the fence = The length of the circumference.
∴ The cost of fencing the ground at the rate of Rs 50/m
=Rs 528×50=Rs 26400
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