SOLUTION: Find the radius of a circle with the equation x2 + y2 - 6x - 12y + 36 = 0

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Question 153709: Find the radius of a circle with the equation x2 + y2 - 6x - 12y + 36 = 0
Answer by orca(409)   (Show Source): You can put this solution on YOUR website!
Note that the equation of a circle in standard form is

where (a,b) is the center of the circle, r is the radius.
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First write the equation in standard form







So the radius is 3.
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