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I need help with geometry

I need help with geometry-example-1
User Voilalex
by
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1 Answer

5 votes

<1 is congruent to <3 because they are vertical angles.

Since both pairs of lines are parallel, the quadrilateral formed is a parallelogram.

<3 is congruent to <5 because opposite angles of a parallelogram are congruent.

<5 is congruent to <7 because they are vertical angles.