Question 324750
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This can't be done in general.  The two triangles described are NOT congruent in a general trapezoid.  If the trapezoid is isosceles, meaning the base angles are of equal measure, then the diagonals are of equal measure and the congruence of the two described triangles follows easily.


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