SOLUTION: A circle has its center at the origin, and (5, -12) is a point on the circle. How long is the radius of the circle?

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: A circle has its center at the origin, and (5, -12) is a point on the circle. How long is the radius of the circle?      Log On


   

Question 1023766: A circle has its center at the origin, and (5, -12) is a point on the circle. How long is the radius of the circle?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A circle has its center at the origin, and (5, -12) is a point on the circle. How long is the radius of the circle?
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Hint: x%5E2+%2B+y%5E2+=+r%5E2