Geometry

Question Analysis

The main focus is on determining the radius of the given circle. We can use the distance between the center of the circle and a point on its circumference.

Key Concept Explanation

The radius of a circle is the distance from the center of the circle to any point on its circumference. The distance formula between two points  and  is .

Step - by - Step Solution

1. Identify the center and a point on the circumference:

Assume the center of the circle is at  (from the graph). A point on the circumference could be

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