mathleaks.com mathleaks.com Start chapters home Start History history History expand_more
{{ item.displayTitle }}
navigate_next
No history yet!
Progress & Statistics equalizer Progress expand_more
Student
navigate_next
Teacher
navigate_next
Expand menu menu_open Minimize
{{ filterOption.label }}
{{ item.displayTitle }}
{{ item.subject.displayTitle }}
arrow_forward
No results
{{ searchError }}
search
menu_open home
{{ courseTrack.displayTitle }}
{{ statistics.percent }}% Sign in to view progress
{{ printedBook.courseTrack.name }} {{ printedBook.name }}
search Use offline Tools apps
Login account_circle menu_open

Using Properties of Parallel Lines

Using Properties of Parallel Lines 1.17 - Solution

arrow_back Return to Using Properties of Parallel Lines

Both of the given angles are on the outer part of the potential parallel lines, and are on opposite sides of the transversal. Therefore, the angles can be classified as alternate exterior angles. According to the Alternate Exterior Angles Theorem, if the angles are congruent, the lines are parallel.

If the angles are congruent, they have the same measure. Let's solve this equation.