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transformations Reflection problem 3
Points A and B and two lines are given. Find the points P and Q on the lines such that a ray of light from A reflected in the two lines will pass through B.
Please enable Java for an interactive construction (with Cinderella).

Study the above construction. The ray must travel from A to P then to Q and finally to B. Note that this construction does not work for certain positions of the points and lines. See if you can make this construction yourself:

Please enable Java for an interactive construction (with Cinderella). Please enable Java for an interactive construction (with Cinderella).
Please enable Java for an interactive construction (with Cinderella).