Question

1. mark a pair of corresponding angles in blue and a pair of same - side interior angles in red.

Explanation:

Step1: Recall corresponding - angles definition

Corresponding angles are in the same relative position at each intersection where a straight - line crosses two others. For example, if we label the angles formed by the transversal and the two parallel lines, the top - left angles at each intersection are corresponding.

Step2: Recall same - side interior angles definition

Same - side interior angles are two angles that are on the same side of the transversal and between the two lines intersected by the transversal.

Answer:

To mark: For corresponding angles, you can mark the top - left angle at the upper intersection and the top - left angle at the lower intersection in blue. For same - side interior angles, you can mark the bottom - left angle at the upper intersection and the bottom - left angle at the lower intersection in red. (The actual marking depends on the specific angle - naming convention in your textbook or class, but the above is a common way).