Who am I?
a right angle
What is an angle whose degree measure is exactly 90?
40 degrees
What is 50 degrees?
The equation 30 + x = 90 shows this relationship.
What is complementary?
angles that add up to 90 degrees
What are complementary angles?
60 degrees
What is 120?
40 + 140 = 180 degrees shows this angle relationship.
What is supplementary?
angles that add up to 180 degrees
What are supplementary angles?
37 degrees
What is 53 degrees?
47 degrees
What is 133 degrees?
two angles that are congruent because they are across from each other and this relationship
What is vertical angles?
angles are congruent because they are opposite from each other are also called this
What are vertical angles?
x
What is 90 - x?
90 degrees
What is 90?
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?
angles that are next to each other are called this
What is adjacent?
5x
What is 90 - 5x?
7x
What is 180 - 7x?
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?
transversal
What is the line that cuts across parallel lines?