Given 1)A point A(x,y). 2)Two others points P(x1,y1) and Q(x2,y2) Find The equation(basically the center) of circle that is tangent to line AP and AQ and of given radius r. How to solve it.
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Originally Posted by gunjannigam Given 1)A point A(x,y). 2)Two others points P(x1,y1) and Q(x2,y2) Find The equation(basically the center) of circle that is tangent to line AP and AQ and of given radius r. How to solve it. 1. The 3 points should not be placed on one single straight line. 2. Let be the midpoint of the circle. The distance of M to AP or AQ must be |r|. 3. Consequently you get 4 pairs of equations for the 4 different Ms: 4. Solve each pair of equations for
Last edited by earboth; December 2nd 2009 at 11:18 PM.
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