Question 663230
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*[tex \LARGE m\angle{1}\ +\ m\angle{2}\ =\ 180\ \ ] Defn Supplementary


*[tex \LARGE m\angle{3}\ +\ m\angle{4}\ =\ 180\ \ ] Defn Supplementary


*[tex \LARGE m\angle{2}\ =\ m\angle{4}\ \ ] Defn Congruence


*[tex \LARGE m\angle{1}\ +\ m\angle{2}\ =\ m\angle{3}\ +\ m\angle{4}\ \ ] Transitive equality


*[tex \LARGE m\angle{1}\ =\ m\angle{3}\ \ ] Subtraction property of equality


*[tex \LARGE \angle{1}\ \text{congruent}\ \angle{3}\ \ ] Defn Congruent: Q.E.D.


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