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GS Ch.1 Points,lines
GS - Geometry H.- Ch.1 - Points, lines, and planes
| Question | Answer |
|---|---|
| Equidisant | Objects the same distance from each other. |
| Point | A location in space that has no dimension |
| A Line | Infinite set of points that extend in opposite directions. A line has one dimension (length). |
| A Plane | An infinite set of points that creates a flat surface that is without end. A plane has two dimensions (length and width) |
| Space | The set of all points. |
| Collinear | Points on the same line. |
| Noncollinear | Points not on the same line. |
| Coplanar | Points on the same plane. |
| Noncoplanar | Points not in the same plane. |
| Intersection | The place where geometric figures cross each other. |
| Segment | Named by giving its endpoints. |
| Ray | Named by giving its endpoint and another point on the line with one arrow. |
| Lenth | The distance between two points. |
| Congruent | Two objects that have the same size and shape. |
| Midpoint of a segment | A point that divides a segment into two congruent segments. |
| Bisector of a segment | A segment bisector is a line, segment, ray, or plane that intersects a segment at its midpoint. |
| Angle | A figure formed by two rays with the same endpoint |
| Measure of an angle | A protractor, or computing the absolute value of the difference of these numbers can be used to find the ... |
| Acute | 0 < m |
| Obtuse | 90 < m |
| Right | m |
| Straight | m |
| Congruent angles | Two angles with equal measures. |
| Bisector of an angle | The ray that divides an angle into two congruent angles. |
| Adjacent angles | Coplanar angles with a common vertex nand a common side but no common interior points. |
| Postulate | A basic assumption accepted without proof. |
| Theorem | A statement that can be proved using postulates, definitions, and previously proved theorems. |
| Exists | There is at least one. |
| Unique | Exactly one. |
| Determine | To define or specify. |