Question 536521
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The first thing you need to do is show that all four points are collinear which is a simple matter of pointing out that the midpoint of a segment has to be on the segment by definition of the midpoint of a segment.


Then, also using the definition of a midpoint, you show that PQ = QR and that QR = RS.  Then by transitive equality PQ = RS.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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