Who am I?
a right angle
What is an angle whose degree measure is exactly 90?
40 degrees
What is 50 degrees?
100 degrees
What is 80 degrees?
angles that add up to 90 degrees
What are complementary angles?
an acute angle
What is an angle whose degrees measure is less than 90?
60 degrees
What is 30 degrees?
60 degrees
What is 120?
angles that add up to 180 degrees
What are supplementary angles?
an obtuse angle
What is an angle whose degree measure is greater than 90 and less than 180?
37 degrees
What is 53 degrees?
47 degrees
What is 133 degrees?
2x + 6 = 3x shows two angles that are congruent because they are on opposite sides from each other.
What is vertical angles?
angles are congruent because they are opposite from each other are also called this
What are vertical angles?
a straight angle
What is an angle whose degrees measure is exactly 180 and forms a straight line?
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?
The sum of the angles in a triangle is equal to 180 degrees.
Triangle Angle Sum Theorem.
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 angles?
transversal
What is the line that cuts across two or more lines?