<PRE><B>Question 653865</B>
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If A and B are supplementary then A + B = 180.  Likewise if C and D are supplementary, then C + D = 180.  But if A and C are congruent, you can substitute and say that C + B = 180, which is to say that C = 180 - B.  Then you can say that 180 - B + D = 180, which is to say D = B.  So what do you think?  True or False?


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
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