| A | B |
| angle | Two rays sharing a common endpoint. Angles are typically measured in degrees or radians. |
| line | The geometric figure formed by two points. A line is the straight path connecting two points and extending beyond the points in both directions. |
| parallel lines | Two distinct coplanar lines that do not intersect. |
| point | Location in a plane. It has no thickness. |
| supplementary angles | Two angles that add up to 180°. |
| transversal | A line that cuts across a set of lines or the sides of a plane figure |
| protractor | an instrument for measuring angles, typically in the form of a flat semicircle marked with degrees along the curved edge |
| name | noting |
| name | hnpfl |