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 = 3x shows two angles that are congruent because they are across from each other and this relationship
What is vertical angles?
300
angles are congruent because they are opposite from each other are also called this
What are vertical angles?
400
a straight angle
What is an angle whose degrees measure is exactly 180 and forms a straight line?
400
x
What is 90 - x?
400
90 degrees
What is 90?
400
This relationship describes two congruent angles that are on the same side of the transversal and match up exactly by sliding one over the other without turning.
What are corresponding angles?
400
angles that are next to each other are called this
What is adjacent?
500
a reflex angle
What is an angle whose degree measure is greater than 180 and less than 360?
500
5x
What is 90 - 5x?
500
7x
What is 180 - 7x?
500
This relationship describes two congruent angles that are on the different sides of the transversal and match up exactly by turning one around over the other.
What are alternate interior or exterior angles?
500
transversal
What is the line that cuts across parallel lines?
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