the cost of fencing a circular plot at the rate of rupees 40 per metre is rupees 7700. what is the area of this circular plot?
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Correct Answer: 24062.5 sq. ft.
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Answer
24062.5 sq.feet
Explanation
Circumference of circular plot
= 770014=550feet
∴2πr=550
=> r=5002π=500×72×22=87.5feet
∴ Area = 227×87.5×87.5
= 24062.5 sq.feet
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