Finding Unknown Angle Measures

Front

Two angles that share the same side are called

Back

Adjacent Angles

Front

An angle that measures 90 degrees is called a

Back

Right Angle

Front

Two angles whose sum equals 180 degrees are called

Back

Supplementary Angles

Front

Two angles that are opposite each other formed by the crossing of two lines are called

Back

Vertical Angles

Front

What is the sum of the measures of complementary angles?

Back

90 degrees

Front

What is the sum of the measures of supplementary angles?

Back

180 degrees

Front

If one angle measures 30 degrees, what is the measure of its complementary angle?

Back

60 degrees

Front

If one angle measures 120 degrees, what is the measure of its supplementary angle?

Back

60 degrees

Front

What do you call angles that are formed when two lines intersect?

Back

Vertical Angles and Adjacent Angles

Front

If two angles are adjacent and one measures 45 degrees, what is the maximum measure the other angle can have?

Back

135 degrees