Ava wants to recognize a pattern by measuring the given pair of angles.
As, we can observe clearly, in the first parallelogram, measure of opposite angles are 59 degrees each.
Similarly, in second parallelogram, measure of opposite angles are 71 degrees each and the third parallelogram has 138 degrees each.
Therefore, we can conclude that the opposite angles of the parallelogram are congruent.
So, In a parallelogram, opposite angles are congruent.
Option 2 is the correct answer.
