Question

What additional information would prove that the figure is a parallelogram?

Answer 1

First one: Option 3

Second one: Option 1

Explanation:

We already have that the segment AD is congruent to segment BC. We need something to relate the segments AB with DC. If they are parallel, it is a parallelogram. So option 3 is the first one.

In the second one, the diagonals must bisect. This will happen with option 1.