Question

If the area of a circle is 40 pi square cm, find the radius.

Answer 1

√40 centimeters

Explanation:

Given :

Area of circle = 40π cm²

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Formula for area of a circle :

Area = πr²

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Equating the given term and formula to find r :

⇒ 40π = πr²

⇒ r² = 40

⇒ r = √40 centimeters

Answer 2

area equation is pi*r^2. divide by pi then square root. so the answer is the square root of 40