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Geometry Vocab1
Practice your Vocabulary!
| Question | Answer |
|---|---|
| Point | location in the space, and has no length, width, or thickness. |
| Line | a straight one-dimensional figure having no thickness and extending infinitely in both directions containing at least two points |
| Plane | a flat, two-dimensional surface that extends indefinitely, containing at least three noncollinear points |
| Ray | to a line or segment with one fixed starting point (endpoint) and a direction. |
| Segments | a part of a line containing two endpoints |
| Opposite Rays | two rays that both start from a common endpoint and go off in exactly opposite directions |
| Angles | formed from two straight lines or rays with a common endpoint (vertex). |
| Complementary Angles | Two angles that have a sum of 90 degrees |
| Supplementary Angles | Two angles that have a sum of 180 degrees |
| Linear Pair | A set of supplementary angles that are also adjacent; two angles that form a straight line. |
| Adjacent Angles | Angles that share a ray, and have no common interior points. |
| Angle Bisector | A ray that partitions an angle into two equal (congruent) parts. |
| Acute | An angle that measures less than 90 degrees. |
| Angle Addition Postulate | The measure of a larger angle is the sum of the measures of the two smaller adjacent angles. |
| Obtuse | An angle that measures more than 90 degrees. |
| Right | An angle that measures exactly 90 degrees. |
| Collinear | Points that lie on the same line. |
| Coplanar | Points that lie within the same plane. |
Created by:
Tusons
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