Answer:
Step-by-step explanation:
What is the radius of the circle?
The radius of the circle can be calculated using the distance formula, which states that the distance between two points (x1, y1) and (x2, y2) is equal to the square root of (x2 - x1)^2 + (y2 - y1)^2. In this case, the radius of the circle is equal to the distance between the center O (5, 5) and the point A (11, 13), which is equal to √(11-5)^2 + (13-5)^2 = 8.