Angle equal to 180 degrees
straight angle
Angles that have the same measure
congruent
Two angles that share a common side and have the same vertex
Adjacent
Opposite angles formed by the intersection of two lines; always congruent
vertical
Two adjacent angles with a sum of 90 degrees
complimentary
Two adjacent angles with a sum of 180 degrees
supplimentary
A line that intersects two or more lines
transversal
Opposite congruent angles formed on the INSIDE of the parallel lines when cut by a transversal
alternate interior
Opposite congruent angles formed on the OUTSIDE of the parallel lines when cut by a transversal
alternate exterior
Congruent angles that occupy the SAME RELATIVE POSITION
corresponding