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What is the reason for the last step in given proof?. Substitution property of equality. linear pair theorem. congruent supplements theorem. transitive property of equality. For parrallel lines cut by a transversal, corresponding angles are congruent.

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  1. 5 May, 07:51
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    The correct answer to this question is "linear pair theorem." A linear pair is a pair of adjacent, supplementary angles. Adjacent means next to each other, and supplementary means that the measures of the two angles add up to equal 180 degrees.
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