Given: lens and ngth are parallelograms.
prove: zlezt
reasons
1. given
statements
1. lens and ngth are parallelograms.
2. zl zens and zgnh - zt
3.2
4. zlezt
2.?
3. vertical angles are congruent.
4. transitive property of congruence
part
what reason justifies the second statement in the proof?
(1 point)
in a parallelogram, consecutive angles are supplementary
alternate interior angles theorem
in a parallelogram, opposite angles are congruent.
corresponding angles postulate