Geometry

Question Analysis

The main focus is using the area formula of a circle to find the radius first, and then determining the diameter from the radius. Given the area value, we need to reverse - engineer the formula .

Key Concept Explanation

The area formula for a circle is , where is the area and is the radius. The diameter of a circle is related to the radius by . To find the radius when the area is known, we divide by to get , then take the square root.

Step - by - Step Solution

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

2. Divide both sides of the equation by :

Click "Show Answer" to reveal the answer and analysis