| A | B |
| complemntary angles | two angles whose sum is 90 degrees |
| supplementary angles | two angles whose sum is 180 degrees |
| corresponding angles | two angles on the same side of the transversal and in the same location on the parallel lines |
| adjacent angles | angles that share the same vertex |
| alternate interior angles | jump and slide between the parallel lines |
| alternate exterior angles | jump and slide outside the parallel lines |
| right angle | exactly 90 degrees |
| obtuse angle | angle whose measurement is more than 90 degrees and less than 180 degrees |