Math ch 3
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Created by:
MariaCuthrell22 on October 19, 2011
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13 terms
Terms | Definitions |
|---|---|
 transversal | form 8 angles when intersecting 2 other lines |
| corresponding angles | any pair of angles in similiar locations with respect to the transversal and other lines |
| parrllel | ----->--- if two lines have the same clope and they are cut by the same traversal line ------>---- |
| corresponding angles postulate | two corresponding angles have the same measure if the lines are parrallel (look at notebook drawings before test) |
| how to find slope | y2-y1 ------- x2-x1 |
| parrallel slopes and lines theorem | two non vertical lines are parrellel if they have the same slope |
| transitivity of parrallelism theorem | if a is parrellel to b and b is parallel to c then a is parrellel to c |
| perpendicular lines | two segments rays or lines are perpendicular if they form a 90 degree angle ----l----- |
| two perpendicular theorem | if two coplaners are each perpendicular to the same line then they are parrellel |
| perpendicular to parallel theorem | if they lie perpendicularto one of the two parraelle lines then it must be perpendicular to the other (lok=ok at notebook before test) |
| perpendicular lines and slope theorem | if the slope of a perpenddicular liine is m then the slope of a lineperpendicular to it is -1 ----- m |
| bisector of a segment | if any point line or ray or other segmetn that itersects a segment at its midpoint |
| perpendicular bisector | a bisector that is perpendicular to the segment |
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