Question

The point (6, 5) lies on a circle centered at (3, –2). Find the radius of the circle.
A. R=3.61
B. R=7.62
C. R=7.81
D. R=58

Answer 1

B.
\[\sqrt{(3-6)^2+(-2-5)^2} \]

Answer 2

Thank you!!

Answer 3

In a problem like this one add the square of the difference in the y coordinates and the x coordinates, and then take the square root of the final result.

Answer 4

Gotcha, thanks for the help.