Terms in this set (...)

complementary angles
Two angles that add up to 90 degrees
vertical angles
A pair of opposite angles made when two lines cross. They will always be equal
adjacent angles
two angles that share the same vertex and have a common side
corresponding angles
two angles in the same location at two different intersections made by a transversal crossing parallel lines.
supplementary angles
two angles that add up to 180 degrees
interior angles of a triangle
Three angles that always add up to 180 degrees
straight angle
a straight line, which measures 180 degrees
a line that passes through two lines in the same plane at two distinct points
obtuse angle