Define a pinwheel as a shape made of a point P and 3 rays with endpoints at P such that each ray goes through one of R, S, T. Let

Question

Define a pinwheel as a shape made of a point P and 3 rays with endpoints at P such that each ray goes through one of R, S, T. Let <RPS=<SPT=<TPR=120°. The rays split the plane into 3 regions. Is it always possible to place a pinwheel in any set of 3n points where n is a positive integer so that in each of the 3 regions of the plane, there are n points?

jhonyy9 · Answer

like first idea try draw this case

minesweeper · Answer

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