Question

how do I know whether all the angle pairs are congruent except for "blank" which are supplementary angles with the answer in the drop box?

Answer 1

Step-by-step explanation

We have the 4 options given for angles formed on parallel lines by a transversal cutting through them.

Vertical angles are equal as shown below.

Alternate interior angles are equal as shown below:

Corresponding angles are equal as shown below:

Same side interior angles are not equal but they add up to 180 degrees.