Question

The area of a circle was calculated to be 1386cm^2 . What is the circumference of the same circle

Answer 1

C≈131.97cm

A Area

1386cm²

Using the formulas

A=πr²

C=2πr

Solving forC

C=2√πA

=2·√π·1386

≈131.97344cm

Explanation:

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