Geometry

Question Analysis

The main focus is applying the area formula of a circle to calculate the area using the given radius. The task is to correctly substitute the radius value into the formula.

Key Concept Explanation

The formula for the area of a circle is , where  represents the area and  is the radius of the circle. This formula shows that the area is directly proportional to the square of the radius.

Step - by - Step Solution

1. Identify the radius value: Here, the radius  inches.

2. Substitute the radius into the area formula:

Use the formula .

Replace  with 13, so

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