An angle that measures 90 degrees
Right Angle
Two angles on opposite sides of the transversal and inside the parallel lines
Alternate Interior angles
Two angles that share a common ray and a common vertex (They are neighbors)
Adjacent Angles
Find the measure of Angle Rdsasdfdas
90 degrees
Two angles that have a sum of 90 degrees
Complementary angles
When parallel lines are cut by a transversal, the angles in matching corners are what kind of angles
Corresponding Angles
Two lines that run alongside one another and never intersect one another
Parallel Lines
Find the measure of Angle X
50 degrees
Two angles formed when lines intersect and that are opposite of each other
Vertical Angles
A line that intersects parallel lines
transversal
An angle that measures greater than 90 degrees
Obtuse angles

Find the measure of the missing angle in the triangle
70 degrees
Which word means that something is the same size?
Congruent
Two angles on opposite sides of the transversal and outside the parallel lines
Alternate Exterior Angles
The sum of the three angles inside of a triangle always measures
180 degrees
Two angles that have a sum of 180 degrees
Supplementary Angles
An angle that measures less than 90 degrees
acute angle
Find the measure of Angle C
80 degrees