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isoperimetric and equal detour points

Author:
kmhkmh
The blue points A,B,C can be moved to modify the triangle. The red point T is the equal detour point and the red point P is the isoperimetric point. If you move the blue point Q over the P, the 3 triangles with Q will have the same perimeter, if you move Q over T they will have the same detour.

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