What is the area and circumferences of a circle with a radius of 20 inches?

1 Answer
Maria Darling
Jun 26, 2016

Area = 1256 inches squared.
Circumference = 125.6 inches.

Explanation:

Area of a circle is #πr^2 #
So 20 x 20 (radius squared) times pi is 1256.
Circumference of a circle is diameter times pi.
So 40 (2 radii means one diameter) times pi is 125.6 inches.
Hope I helped.

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