9.14 Angle Relationships

Front

Complementary angles always add up to

Back

90

Front

If 2x and 10x are supplementary angles, what do they measure? (Hint: 2x + 10x = 180)

Back

30°, 150°

Front

Back

Vertical

Front

Supplementary angles always add up to

Back

180

Front

Back

Complementary

Front

Define complementary angles.

Back

Two angles that add up to 90°.

Front

Define supplementary angles.

Back

Two angles that add up to 180°.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal.

Front

If two angles are complementary, what is the measure of one angle if the other is 40°?

Back

50°

Front

If one angle measures 70°, what is the measure of its supplementary angle?

Back

110°