Angle Pairs By : Torey Morris complementary angles , supplementary angles , vertical angles , and adjacent angles this is a supplementary angle it adds up 180 degrees . the supplementary angle is a straight line This is a complementary angle it adds up 90 degrees it is the shape of an L or a right angle Vertical angles are two line crossing each other and they are always congruent they both are adjacent and they equal up to 180 degrees