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

measures exactly 90 degrees

What is a right angle?

100
40 degrees
What is 50 degrees?
100
100 degrees
What is 80 degrees?
100
The equation 30 + x = 90 shows this relationship.
What is complementary?
100
angles that add up to 90 degrees
What are complementary angles?
200

an angle whose measure is less than 90 degrees

What is an acute angle?

200
60 degrees
What is 30 degrees?
200
60 degrees
What is 120?
200
40 + 140 = 180 degrees shows this angle relationship.
What is supplementary?
200
angles that add up to 180 degrees
What are supplementary angles?
300

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

What is an obtuse angle?

300

37 degrees

What is 53 degrees?

300
47 degrees
What is 133 degrees?
300

this relationship shows two angles that are congruent because they are across from each other

What are vertical angles?

300

angles are congruent because they are opposite from each other are also called this

What are vertical angles?

400

an angle that measures exactly 180 degrees and forms a line

What is a straight angle?

400

55 degrees

What is 35 degrees?

400
90 degrees
What is 90?
400

This relationship describes two angles that are NOT next to each other.


What are non-adjacent angles?

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

a set of supplementary angles that are adjacent to each other

What is a linear pair?

500

87 degrees

What is 3 degrees?

500

117 degrees

What is 63 degrees?

500

This relationship describes two adjacent supplementary angles

What is a linear pair?

500
formed by two rays with a common endpoint

What is an angle?