Angle relationships

Two angles with a sum of 90 degrees

• Supplementary
• Complementary
• Right
• Vertical

Angles whose measure sum up to 180 degrees.

• Vertical

• Adjacent

• Complementary

• Supplementary

What is the measure of the missing angle?

What is the measure of angle x?

• 20^o
• 70^o
• 160^o
• 180^o

What are vertical angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that add up to 360°
• Angles that are opposite of each other when lines intersect and are equal

What are supplementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect

What are complementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect.

Use the image to answer the question.

• Definition of complementary angles
• Definition of vertical angles
• Definition of supplementary angles
• Definition of right angle

What term is used to describe a pair, or group, of angles that equal 180 degrees?

• Supplementary Angles
• Complementary Angles
• Vertical Angles
• Congruent Angles

Vertical angles are always

• acute
• total 180 degrees
• congruent (equal measures)
• adjacent angles