Question

the circumference of a circular pond is 396 m .what its area ​

Answer 1

Circumference =2πr

396m= 2×22/7×r

396m=44/7×r

396m×7/44=r

63m = r

Therefore, r= 63m.

Then,

Area of pond = π r²

=22/7×(63m)²

=22/7×63m×63m

=22×9m×63m

=12474m²

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