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Geometry Chapter 3
Term | Definition |
---|---|
parallel lines | never intersect, go in the same direction, in the same plane |
skew lines | never intersect, go in different directions, different planes |
transversal | line that intersects 2 or more coplanar, parallel lines |
interior angles | inside the parallel lines |
exterior angles | outside the parallel lines |
alternate interior angles | 2 non-adjacent interior angles on opposite sides of transversal, make a Z, congruent |
alternate exterior angles | 2 non-adjacent exterior angles on opposite sides of transversal, congruent |
same side interior angles | 2 interior angles on the same side of transversal, make a C, suppl |
corresponding angles | 1 interior and 1 exterior angle , non-adjacent , on the same side of transversal, make an F, congruent |
if a line is perpendicular to one of two parallel lines then | it is perpendicular to the other |
slop-intercept form | y=mx+b |
proof with parallel lines in given | ll--> etc. |
proof with parallel lines in prove | etc. --> ll as the last step |