Question 977914
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The only way that this question has an answer is if S and T are the endpoints of one of the non-parallel sides.  In this case angle S and angle T are same side interior angles of a transversal of two parallel lines and are therefore supplementary.


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

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \