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Question: For fans of geometric puzzles - difficult!

Question:For fans of geometric puzzles - difficult!

Alfred_F 285 Maple 2024
geometry recreational-mathematics
October 09 2024
0

In the rectangular Cartesian coordinate system, three straight lines gA, gB, gC are given, which are not all parallel to each other. Another straight line g and the points Oa, Ob, Oc on it are given. A triangle ABC is to be constructed, one of whose vertices lies on gA, gB or gC and the triangle sides a, b and c (or their extensions) each run through Oa, Ob or Oc.
We are looking for the coordinates of the vertices A, B, C.
In a purely constructive solution, the calculation can be omitted.
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