Angle Relationships

Front

What is the definition of corresponding angles?

Back

Corresponding angles are pairs of angles that are in the same position on two parallel lines cut by a transversal.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of angles that lie outside the two parallel lines and on opposite sides of the transversal.

Front

What is the relationship between alternate interior angles?

Back

Alternate interior angles are equal when two parallel lines are cut by a transversal.

Front

Define vertical angles.

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

What does it mean for angles to be congruent?

Back

Congruent angles are angles that have the same measure.

Front

How do you find the measure of an angle when given its supplementary angle?

Back

The measure of an angle is found by subtracting the measure of its supplementary angle from 180 degrees.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

What is the definition of a transversal?

Back

A transversal is a line that intersects two or more lines at different points.

Front

How do you solve for an unknown angle in a pair of complementary angles?

Back

To solve for an unknown angle in a pair of complementary angles, subtract the known angle from 90 degrees.

Front

What is the relationship between exterior angles and the interior angles of a triangle?

Back

The exterior angle of a triangle is equal to the sum of the two opposite interior angles.