Question

how many right angles does perpendicular bisector $overline{mn}$ create with $overline{kl}$?

Explanation:

Step1: Recall perpendicular - bisector property

A perpendicular bisector of a line segment is perpendicular to the line segment. By the definition of perpendicular lines, perpendicular lines intersect to form right - angles.

Step2: Determine number of right - angles

When a line is perpendicular to another line, 4 right - angles are formed at the intersection point. Here, perpendicular bisector $\overline{MN}$ intersects $\overline{KL}$ at point $O$, forming 4 right - angles.

Answer:

4