1. If quadrilateral ABCD is a parallelogram, then which relation must be true?
A) m∠A = m∠B
B) m∠B = m∠D
C) AB = DA
D) AB = BC
Draw out the diagram and reference the fact that opposite angles and opposite sides are congruent in parallelograms
diagram is attached
![1 If quadrilateral ABCD is a parallelogram then which relation must be true A mA mB B mB mD C AB DA D AB BC Draw out the diagram and reference the fact that opp class=](https://us-static.z-dn.net/files/db4/348b446a8dd9c47ab61f456dc46906d4.png)