Become a math whiz with AI Tutoring, Practice Questions & more.

Join for Free
HotmathMath Homework. Do It Faster, Learn It Better.

Alternate Interior Angles

The term alternate interior angles is often used when two lines are cut by a third line, a transversal .

Two parallel lines cut by a transversal n, with angles labeled 1 through 8

In the figure above, line t is a transversal cutting lines k and l , and there are two pairs of alternate interior angles:

2 and 8

3 and 5

The Alternate Interior Angles Theorem states that if k and l are parallel , then the pairs of alternate interior angles are congruent . That is,

2 8 and 3 5 .

The converse of this theorem is also true.

Subjects Near Me
Popular Cities
Popular Subjects
;
Download our free learning tools apps and test prep books
varsity tutors app storevarsity tutors google play storevarsity tutors amazon storevarsity tutors ibooks store