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Geometry Def.
| Term | Definition |
|---|---|
| Point | Infinitely small location in space |
| Line | Infinitely long, infinitely thin straight path |
| Plane | Infinitely long, infinitely wide flat surface |
| Line Segment | Part of a line with two endpoints |
| Ray | Part of a line with one endpoint |
| Axiom | A (mathematical) statement which we accept as true without proof (because there is NO counterexample) |
| Collinear | Two or more points that lie on a common line |
| Parrallel | Two (or more) lines are parallel if they never intersect AND are on the same plane |
| Skew Lines | Two lines not in the same plane, which never intersect |
| Angle | Two rays with a common endpoint (vertex) |
| (One) Degree | 1/360 of a complete rotation |
| (Geometric) Intersection | (All) points in common |
| Perpendicular | Two lines (or rays, or segments) which intersect at 90 degrees |
| Adjacent Angles | Two angels which share a common ray, vertex and do not overlap |
| Theorem | A mathematical statement which we can prove to be true |
| Vertical Angles | Two non-adjacent angles formed by two intersecting lines |
| Transversal | A line which intersects two given lines in a place |
| Corresponding Angles | 1) On SAME side of transversal, 2) one interior, one exterior, 3) not adjacent |
| Alternate Interior Angles | 1) Opposite sides of the transversal, 2) both interior, 3) not adjacent |
Created by:
jdg33
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