SOLUTION: The circle shown below is centered at the origin and contains point (-6,5). What is the exact length of the diameter of the circle?

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Question 860263: The circle shown below is centered at the origin and contains point (-6,5). What is the exact length of the diameter of the circle?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the distance formula to calculate the length from (0,0) to (-6,5).
That distance is equal to the radius of the circle.
R%5E2=%28-6-0%29%5E2%2B%285-0%29%5E2
R%5E2=36%2B25
R%5E2=61
R=sqrt%2861%29
The diameter is twice the radius.
D=2sqrt%2861%29