Complementary, supplementary & vertical angles

Front

What are vertical angles?

Back

Vertical angles are angles that are opposite each other when two lines intersect. They are always congruent (equal in measure).

Front

What is the measure of supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What is the complement angle to 45°?

Back

The complement angle to 45° is 45°.

Front

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

Back

The other angle measures 110°.

Front

What is the supplement angle to 90°?

Back

The supplement angle to 90° is 90°.

Front

If two angles are vertical angles and one measures 30°, what is the measure of the other angle?

Back

The other angle also measures 30°.

Front

What is the complement angle to 75°?

Back

The complement angle to 75° is 15°.

Front

If one angle measures 120°, what is its supplement?

Back

The supplement of 120° is 60°.

Front

What do you call two angles that add up to 90°?

Back

Two angles that add up to 90° are called complementary angles.

Front

If two angles are adjacent and one measures 50°, what is the measure of the other angle if they are supplementary?

Back

The other angle measures 130°.