| A | B |
|---|
| corresponding angle postulate | 2 angles on the same side of the transversal and in the interior of the other 2 lines |
| alternate interior angle theorem | if 2 parallel lines are cut by a transversal, then each pair of alternate interior angles are congruent |
| alternate exterior angle theorem | if 2 parallel lines are cut by a transversal, then each pair of consecutive interior angles are supplementary |
| perpendicular transversal theorem | in a plane, if a line is perpendicular to one of two parallel lines, then it is perpendicular to the other |
| parallel postulate | if there is a line and a point no on the line, thnen there exists exactly one line thru the point that is parallel to the given one |
| pair of corresponding <'s are congruent, pair of AEA are congruent, that pair of CIA are supplementary,pair of AIA <'s are congruent, or that 2 lines are per. to same line | if a line is parallel, u must prove: |
| the distance b/w a point and a line | distance b/w a point and a line is the length of the segment perpendicular to the line from that point |
| corresponding angles | one < in same position in respect to other < |
| consecutive interior angles | 2 <'s inside || lines on same side of transversal |
