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Compute the length of the segment tangent from the origin to the circle that passes through the points (3, 4), (6, 8), and (5, 13).

 Jan 2, 2021
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The center of the circle is (5/2,15/2), and the radius is 5/sqrt(2).  So by power of a point, the length of the tangent is 7*sqrt(3).

 Jan 2, 2021

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