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H Geom chap 3 vocab
Term | Definition |
---|---|
parallel lines | lines that are coplanar and do not intersect |
perpendicular lines | lines that intersect at a 90* angle |
skew lines | lines not coplanar---not parallel and do not exist |
parallel planes | planes that do not intersect |
transversal | a line that intersects two coplanar lines at two different points |
corresponding angles | 2 angles that lie on the same side of the transversal and on the same sides of parallel lines |
alternate interior angles | nonadjacent angles that lie on opposite sides of the transversal and between the parallel lines |
alternate exterior angles | 2 angles lie on opposite sides of the transversal and outside the parallel lines |
same-side interior angles | angles that lie on the same side of the transversal and between the parallel lines |
perpendicular bisector | line perpendicular to a segment at the segment's midpoint |
distance from a point to a line | length of the perpendicular segment from the point to the line |
rise | difference in the y-values of 2 points on a line |
run | difference in the x-values of 2 points on a line |
slope | ratio of rise to run |