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Who am I?
What's my complement?
What's my supplement?
Angle Relationships
Angle Definitions
100

What is a right angle?

an angle whose degree measure is exactly 90

100

40 degrees

What is 50 degrees

100

100 degrees

What is 80 degrees

100

Name a pair of supplementary angles

Examples:  Angles 1 and 2, Angles 3 and 4, Angles 5 and 6, Angles 7 and 8

100
angles that add up to 90 degrees
What are complementary angles?
200

What is an acute angle?

an angle whose degrees measure is less than 90

200

60 degrees

What is 30 degrees

200

60 degrees

What is 120

200

Name two pairs of vertical angles.

Angles 1 and 4, Angles 2 and 3, Angles 5 and 8, Angles 7 and 6

200
angles that add up to 180 degrees
What are supplementary angles?
300

What is an obtuse angle?

an angle whose degree measure is greater than 90 and less than 180

300

37 degrees

What is 53 degrees

300

47 degrees

What is 133 degrees

300

Name a pair of of alternate interior angles.

Angles 3 and 6, Angles 4 and 5

300
angles are congruent because they are opposite from each other are also called this
What are vertical angles?
400

What is an angle whose degrees measure is exactly 180 and forms a straight line?

a supplementary angle

400

81 degrees

What is 9 degrees

400

90 degrees

What is 90

400

Name a pair of alternate exterior angles

Angles 1 and 8, Angles 2 and 7

400
angles that are next to each other are called this
What is adjacent?
500

What is an angle whose degrees measure is exactly 90 degrees?

Complementary Angle

500

12 degrees

What is 78 degrees

500

82 degrees

What is 98 degrees

500

Name a pair of corresponding angles.

Angles 1 and 5, Angles 2 and 6, Angles 3 and 7, Angles 4 and 8

500
transversal
What is the line that cuts across parallel lines?