| A | B |
|---|
| Angle | Two rays with the same endpoint |
| Complementary Angles | Two angles whose measures add up to 90 degrees |
| Supplementary Angles | Two angles whose measures add up 180 degrees |
| Alternate Interior Angles | Two angles formed by a transversal that are inside two parallel lines |
| Alternate Exterior Angles | Two angles formed by a transversal that are outside two parellel lines |
| Angle Bisector | A line,segement,or ray that divides an angle into two congruent angles |
| Acute Triangle | A triangle with three acute angles |
| Obtuse Triangle | A triangle with an obtuse angle |
| Right Triangle | A triangle with a right angle |
| Isosceles Triangle | A triangle with atleast two sides of the same length |
| Equilateral Triangle | A triangle with three sides of the same length |
| Scalene Triangle | A triangle with no sides of equal length |
| Perpendicular | Lines forming right angles |
| Corresponding Angles | Two angles on the same side of a transversal that crosses two parallel lines |
| Verticle Angle | Two angles that share the same vertex |
