Geometry

Question Analysis

The main focus is on using the area formula of a circle to find the radius. Given the area value, we need to reverse - apply the formula .

Key Concept Explanation

The area formula for a circle is . To find the radius when the area is known, we divide by to get , then take the square root of the result. Since radius is non - negative, we consider the positive square root.

Step - by - Step Solution

1. Start with the formula , and substitute . We get

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