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Question 612627: show rhat the points A(-2,2) B(5,-5) C(4,2) are located on a circle with center w(1,-2) . what is the radius of the circle
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! show rhat the points A(-2,2) B(5,-5) C(4,2) are located on a circle with center w(1,-2) . what is the radius of the circle
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Find the distance squared from the center to each point.
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From (1,-2) to A:
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Do the same for B & C. If they're equal, they on the circle.
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r^2 = 25
r = 5
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