Math, asked by samruddhimore979, 1 month ago

Prove, “If a pair of alternate angles formed by a transversal of two lines is congruent, then the two lines are parallel.

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Answered by rizvitaqi21

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Euclid's Proposition 27 states that if a transversal intersects two lines so that alternate interior angles are congruent, then the lines are parallel. Euclid proves this by contradiction: If the lines are not parallel then they must intersect and a triangle is formed.

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