Prentice Hall Mathematics Vocab ch.1
Order by
40 terms
Terms | Definitions |
|---|---|
 Acute Angle | An angle whose measure is between 0 and 90 |
| Adjacent Angles | Two coplanar angles that have a common side and a common vertex but no common interior points |
| Angle | Formed by two rays with the same endpoint. The rays are the sides of the angle and with the common endpoint is the vertex of the angle. |
| Angle Bisector | A ray that divides an angle into two congruent angles. |
| Axiom | An accepted statement of fact. |
| Collinear Points | Points that lay on the same line. |
| Compass | A geometric tool used to draw circles and parts of circles, called arcs. |
| Complementary Angles | Two angles whose sum equals 90 |
| Congruent Angles | Angles that have the same measure |
| Congruent Segments | Segments that have the same length. |
| Conjecture | A conclusion reached by using inductive reasoning. |
| Construction | A geometric figure made with only a straightedge and a compass. |
| Coordinate | The distance and direction from the origin of a number line. The coordinates of a point on a coordinate plane are in the form where x is the x-coordinate and y is the y-coordinate. |
| Coplanar | Figures in the same plane. |
| Counter example | A particular example or instance of the statement that makes the statement false. |
| Foundation Drawing | A drawing that shows the base of a structure and the height of each part |
| Inductive Reasoning | A type of reasoning that reaches conclusions based on a pattern of specific examples or past events. |
| Isometric Drawing | A drawing of a three-dimensional object shows a corner view of a figure. |
| Line | A series of points that extend in two directions without end. |
| Midpoint | A point that divides the segment into two congruent segments. |
| Net | A two-dimensional pattern that you can fold to form a three-dimensional figure. |
| Obtuse Angle | An angle whose measure is between 90 and 180. |
| Opposite Rays | Collinear rays with the same endpoint. They form a line. |
| Orthographic Drawing | The top view, front view and right-side view of a three-dimensional figure. |
| Parallel Lines | Lines that lie in the same plane and do not intersect. |
| Parallel Planes | Planes that do not intersect |
| Perpendicular Bisector | A line, segment, or ray that is perpendicular to the segment at its midpoint. |
| Perpendicular Lines | Lines that intersect and form right angles. |
| Plane | A flat surface that has no thickness. Contains many lines and extends without end in the directions of its lines. |
| Point | A location. |
| Postulate | An accepted state of fact |
| Ray | The part of a line consisting of one endpoint and all the points of the line on one side of the endpoint. |
| Right Angle | An angle whose measure is 90. |
| Segment | The part of a line consisting of two points, called endpoints and all the points between them. |
| Skew Lines | Lines that do not lie in the same plane. |
| Space | The set of all points. |
| Straight Angle | An angle whose measure is 180. |
| Straightedge | A ruler with no markings on it. |
| Supplementary Angles | Two angles whose sums equal 180. |
| Vertical Angles | Two angles whose sides form two pairs of opposite rays. |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.