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Circles & Conicsmedium
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A circle defined by (x−5)2+(y+7)2=r2(x - 5)^2 + (y + 7)^2 = r^2(x−5)2+(y+7)2=r2 is tangent to the line 3x−4y+2=03x - 4y + 2 = 03x−4y+2=0. What is the radius rrr?