If the are of circular pond is 1386 cm^2 .Find its perimeter.
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Answer:
r = 21.09 cm
Step-by-step explanation:
Let radius be x cm
Area = 1386 cm²
πr² = 1386
r² = 1386 * 7/22
r² = 441.9
r = √441.9
r = 21.09 cm
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