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Who am I?
What's my complement?
What's my supplement?
Angle Relationships
Definitions
100
a right angle
What is an angle whose degree measure is exactly 90?
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 acute angle
What is an angle whose degrees measure is less than 90?
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 obtuse angle
What is 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

2x + 6 = 18 shows two angles that are congruent, find the value of x.

x=6

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

a supplementary angle

What is an angle whose degree measure is greater than 0 and less than 180?

400

5 angles that are 12 degrees

What is 90 - 5x?

400

180 - 7x = 110, what is x?

x=10

400

Three angles have the following measures: 219, 2x-5 and 4x+8. Find the value of x.

x = 23

400

Two lines that are the same distance apart

What is parallel lines?

500
a straight angle
What is an angle whose degrees measure is exactly 180 and forms a straight line?
500

3 angles that are 12 degrees and 2 angles that are 14 degrees

26 degrees

500

right angle

What is 90?

500

Two adjacent angles on a straight line have the measures of 7x+2 and 8x-17. Find x and the value of each angle.

x = 13, Angle Measures: 93 and 87

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