Question 234187
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There are three ways to prove that two triangles are congruent.  Either all three sides have equal measure (Side-Side-Side or SSS), two angles and the side between them all have equal measures (Angle-Side-Angle or ASA), or two sides and the angle between them have equal measures, (Side-Angle-Side or SAS).  Depending on your proof, you choose the one that you are able to demonstrate.  For some proofs, it is possible that it can be done more than one of the ways, and for others, there may only be one way -- and that is the problem: figuring out which of the three ways is going to work and then how you get there starting at the givens.  Sometimes intuition works well, sometimes creativity helps, and sometimes you just have to use good old trial and error.  Sorry, no magic formulas or bullets here.



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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