Question

The circumference of a circle whose area is 81π, is


*absurd answers will be moderated*

Answer 1

Step-by-step explanation:

The circumference of a circle is given by C=2pir

Area of a certain circle is given as 81pi

pi (r)^2 = 81pi

r = 9units

Circumference = 2× pi×9 = 18pi units

Answer 2

Step-by-step explanation:

Hope it's help you.

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