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OpenStudy (anonymous):
What is the radius of a circle with the equation x^2+y^2+4x+8y-10=0
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OpenStudy (raden):
if given an equation of cicle : x^2+y^2+Ax+By+C=0 (A,B,C are constants) so, to find its radius we can use the formula : |dw:1352479512575:dw|
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