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geo.Lines and angles
lines/angles postulates and theorems
| Question | Answer |
|---|---|
| skew lines | lines that do not intersect and are not parallel |
| parallel postulate | only 1 line exists that can be drawn through a point and parallel to a specific line |
| perpendicular postulate | only 1 line exists that can be drawn through a point and perpendicular to a specific line |
| transversal | any line that intersects 2 or more lines |
| corresponding angles postualte | angels in the same positions- correspond to each other are congruent |
| alternate interior angles theorem | if 2 parallel lines are cut by a transversal, then the pairs of alternate interior angles are congruent |
| consecutive interior angles theorem | if 2 parallel lines are cur by a transversal then the pairs of consecutive interior angles are supplementary |
| alternate exterior angles | if 2 lines are cut by a transversal then the pairs if alternate exterior angles are congruent |
| perpendicular transversal | if a transversal is perpendicular to 1 out of 2 parallel lines, then it is perpendicular to the other |
| corresponding angles converse | if 2 lines are cut by a transversal so that corresponding anglews are congruent, then the lines are parallel |
| alternate interior angles converse | if 2 lines are cut by a transversal so that alternate interior angles are congruent, then the lines are parallel |
| consecutive interior angles converse | if a transversal cuts 2 lines so that the consecutive interior angles are supplementary, then the lines are parallel |
| alternate exterior angles converse | if a transversal cuts 2 lines so that the alternate exterior angles are congruent then the lines are parallel |