Geometry

Question Analysis

The main focus is to find the circumference of a circle. First, we need to calculate the radius of the circle using the distance formula between the center and a point on the circle, then use the formula for the circumference of a circle.

Key Concept Explanation

The distance formula between two points and is , where represents the distance (in this case, the radius of the circle).

The formula for the circumference of a circle is , where is the radius of the circle.

Step-by-Step Solution

1. Calculate the radius using the distance formula with as and

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