Angle a and b are same-side interior angles. Angle a measures 40 degrees. What is the measure of angle b?
140 degrees; 180 = b + 40
What are two lines that never intersect are called?
Parallel
Angles a and b are same-side exterior angles. Angle a measures 144 degrees. What is the measure of angle b?
36 degrees; 180 - 144 = 36
Angle x and angle y are vertical angles. Angle y measures 110 degrees. What is the supplement of angle x?
70 degrees
What are the angles on the inside of the parallel lines and on opposite sides of the transversal called?
Alternate Interior Angles
One angle measures x+13 degrees the supplement of that angle measures 57 degrees. What is the value of x?
110; 180 = x + 13 + 57
Angle a and b are alternate exterior angles. Angle a measures 111 degrees. What is the measurement of angle b?
111 degrees
Angles a and c are vertical angles. Angle a measures 42 degrees. What is the supplement of Angle c?
138 degrees
What are angles that are in matching corners of the parallel lines called?
Corresponding Angles
Angles which share a vertex, have opposite rays, and congruent are called?
Veritcle Angle
One angle measures 2x+3 degrees and the complement of that angle measures x-3 degrees. What is the value of x?
30; 90 = 2x + 3 + x - 3
Angles a and b are vertical angles. Angle a measures 171-2x degrees and angle b measures 15 degrees. What is the value of x?
78
What is the relationship between the angles on the inside of the parallel lines and on the same side of the transversal?
SSIA are Supplementary