### Home > GC > Chapter 7 > Lesson 7.3.3 > Problem 7-123

7-123.

Examine each line's slope to determine the relationship between the two lines.

If *E* is a midpoint of *CD*, their diagonals would be perpendicular bisectors.

7-123.

Examine each line's slope to determine the relationship between the two lines.

If *E* is a midpoint of *CD*, their diagonals would be perpendicular bisectors.