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NorthCrawford GeoCh3
Lines and Angles
| Term | Definition |
|---|---|
| Parallel Lines | Coplanar lines that do not intersect. |
| Skew Lines | Non-coplanar lines, are not parallel, and they do intersect. |
| Parallel Planes | Planes that do not intersect. |
| Transversal | A line that intersect two or more coplanar lines at distinct points. |
| Alternate Interior Angles | Nonadjacent interior angles that lie on opposite sides of the transversal. |
| Same-side Interior Angles | Interior angles that lie on the same-side of the transversal. |
| Corresponding Angles | Angles that lie on the same side of the transversal (t) and in corresponding positions. |
| Alternate Exterior Angles | Nonadjacent exterior angles that lie on opposite sides of the transversal. |
| Auxiliary Line | Line that you add to a diagram to help explain relationships in proofs. |
| Exterior Angle Of A Polygon | Angle formed by a side and an extension of an adjacent side. |
| Remote Interior Angles | Two nonadjacent interior angles. |
| Slope | measure of a line is the ratio of the vertical change Rise/Run |
| Slope-Intercept Form | Equation of a non-vertical line is y = mx + b, where m is the slope and b is the intercept. |
| Point-Slope Form | Equation of a non-vertical line is y - y^1 = m(x - x^1), where m is the slope and (x^1,y^1) is a point on the line. |