Find the equation of the circle that is tangent to the line x=8 that h

1.	Find the equation of the circle that is tangent to the line x=8 that has a centre at (-5,10)
Answer» The line x=8 is perpendicular to the radius and the horizontal distance from the center is 13.The radius of this circle must be 13!The circle then is (x+5)2 + (y-10)2 = 169

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