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

100What is an angle whose degree measure is exactly 90?
a right angle

100What is 50 degrees?
40 degrees

100What is 80 degrees?
100 degrees

100What is complementary?
The equation 30 + x = 90 shows this relationship.

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

200What is an angle whose degrees measure is less than 90?
an acute angle

200What is 30 degrees?
60 degrees

200What is 120?
60 degrees

200What is supplementary?
40 + 140 = 180 degrees shows this angle relationship.

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

300What is an angle whose degree measure is greater than 90 and less than 180?
an obtuse angle

300What is 53 degrees?
37 degrees

300What is 133 degrees?
47 degrees

300What is vertical angles?
2x + 6 = 3x shows two angles that are congruent because they are across from each other and this relationship

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

400What is an angle whose degrees measure is exactly 180 and forms a straight line?
a straight angle

400What is 90  x?
x

400What is 90?
90 degrees

400What are corresponding angles?
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.

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

500What is an angle whose degree measure is greater than 180 and less than 360?
a reflex angle

500What is 90  5x?
5x

500What is 180  7x?
7x

500What are alternate interior or exterior angles?
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.

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