Geometry

Question Analysis

This question focuses on circles. The main task is to find the radius by calculating the distance between the center of the circle  and a given point on the circle  using the distance formula.

 

Key Concept Explanation

The radius  of a circle is the distance from the center  to any point  on the circle. The distance formula is .

 

Step - by - Step Solution

1. Identify the coordinates: Let  and .

2. Apply the distance formula:

Calculate

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