Angle Pairs and Parallel Lines

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What is the relationship between parallel lines and corresponding angles?

Back

When a transversal crosses parallel lines, corresponding angles are equal.

Front

What is the relationship between parallel lines and alternate interior angles?

Back

When a transversal crosses parallel lines, alternate interior angles are equal.

Front

What is the relationship between parallel lines and same-side interior angles?

Back

When a transversal crosses parallel lines, same-side interior angles are supplementary.

Front

If two angles are vertical angles, what can be said about their measures?

Back

Vertical angles are always equal.

Front

Solve for x: 2x + 10 = 30.

Back

x = 10.

Front

Solve for the measure of the angle if it is complementary to a 35-degree angle.

Back

55 degrees.

Front

Solve for the measure of the angle if it is supplementary to a 120-degree angle.

Back

60 degrees.

Front

If two angles are supplementary and one angle measures 70 degrees, what is the measure of the other angle?

Back

110 degrees.