Lesson 3 Notes

A line that crosses two other lines in the same plane is called a transversal.

In the figure below, which line is a transversal?  m, n, or t?

Angles 1, 2, 7, and 8 are called exterior angles.
Angles 3, 4, 5, and 6 are called interior angles.

Write a definition for exterior angles.

Write a definition for interior angles.

Angles 1 and 5 are corresponding angles.
Angles 4 and 8 are also corresponding angles.

Write a definition for corresponding angles.

Give two more pairs of corresponding angles.

1.

2.

Angles 3 and 6 are alternate interior angles.
Give another pair of alternate interior angles.

Angles 1 and 8 are alternate exterior angles.
Give another pair of alternate interior angles.

Angles 3 and 5 are consecutive interior angles.
Give another pair of consecutive interior angles.