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T3ny's Stack
Unit:2 Vocabulary
| Question | Answer |
|---|---|
| Acute Angle | - an angle whose measure is greater than 0 but less than 90 degrees |
| Congruent angles | - two angles where one is the image of the other under a reflection or composite of reflections; written AB |
| Coplanar | - within the same plane |
| Midpoint | - the point M of where AM = AB |
| Perpendicular Lines | - 2 segments, rays, or lines that form a 90 degree angle |
| Ray | - a one-dimensional figure that consists of one endpoint A, one point B, all of the points on , and all points for which B is between them and A; written |
| Space | - the set of all possible points; made up of infinite planes |
| Angle | - the union of 2 rays that have the same endpoint; measured in degrees or radians (trig.); the five types of angles are zero, acute, right, obtuse, and straight |
| Congruent segments | •Congruent Segments have the same length. |
| counter-example | -a situation in a conditional for which the antecedent is true, but the conditional is false; aka contradiction |
| obtuse angle | - an angle whose measure is greater than 90 but less than 180 degrees; see acute angle |
| plane | - a two-dimensional group of points that goes on infinitely in all directions; made up of infinite lines |
| right angle | -measures 90 degrees |
| angle bisector | An angle bisector is a ray that cuts the angle exactly in half, making two equal angles. |
| conjecture | is believed to be true but not yet proved. |
| inductive reasoning | is the process of arriving at a conclusion based on a set of observations. |
| opposite rays | - two rays with a common endpoint that form a line |
| point | - a zero-dimensional figure; while usually left undefined |
| segment | the set of points consisting of two distinct points and all inbetween them; written |
| collinear | - in the same line |
| coordinate | - a number that identifies (or helps to identify) a point on a number line (or on a plane, or in space) |
| line | - a two-dimensional object that has no endpoints |
| parallel lines | Two lines in the same plane which never intersect are called parallel lines |
| postulate | - a statement assumed to be true without proof |
| skew line | - non-coplanar lines that don't intersect |
Created by:
paz_y_amor
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