Angles and parallel lines

Front

What are corresponding angles?

Back

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

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that are on opposite sides of the transversal and inside the two parallel lines. They are equal in measure.

Front

If angle 6 is 25 degrees, what is angle 7?

Back

Angle 7 is 155 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

If two parallel lines are cut by a transversal, what can be said about the angles formed?

Back

The angles formed have specific relationships: corresponding angles are equal, alternate interior angles are equal, and consecutive interior angles are supplementary.

Front

What is the relationship between angle 5 and its corresponding angle?

Back

Angle 5 is equal to its corresponding angle, which is angle 1.

Front

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

Back

To find the measure of an angle that is supplementary to another, subtract the measure of the known angle from 180 degrees.

Front

What are consecutive interior angles?

Back

Consecutive interior angles are pairs of angles that are on the same side of the transversal and inside the two parallel lines. They are supplementary, meaning their measures add up to 180 degrees.

Front

If angle C is 116 degrees, what is the measure of its supplementary angle?

Back

The supplementary angle to angle C is 64 degrees.

Front

What is a transversal?

Back

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