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The point (-3,-6) lies on a circle. what is the length of the radius of the circle if the center is located at (9,-2)
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The point (-3,-6) lies on a circle. what is the length of the radius of the circle if the center is located at (9,-2)

User Sshaw
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you find out the distance between those two points by using the distance formula.
d= the square root of [(9-(-3)]²+[(-2-(-6)]²=√(144+16)=√160=4√10
the radius is 4√10
User Socasanta
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