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Geometry 2/2
| Question | Answer |
|---|---|
| inductive reasoning | look for a pattern, make a conjecture using examples, use logical reasoning to verify the ocnjecture. |
| attributes | a way to characterize items based on these items having the same characteristics |
| congruent figures | two figures that have the same shape and size |
| similar figures | same shape |
| if 2 figures are congruant, then they are ___ | similar |
| not always congurant if _____ | similar |
| line symmetry | figure can be divided into 2 parts, each of which is the mirror image of the other |
| rotational symmetry | the figure is rotated 0 to 180 degrees about its center and the resting figure coincided with the original |
| optical illusions | when your eyes see something differently or are tricked into believing something is true when it's not |
| point | can be thought of as a dot that represents a location in a plan or space |
| line | an infinite number of points extending in both directions |
| plane | a flat surgace that extends infinitely in all directions |
| segment | a part of a line having two endpoints |
| ray | a part of a line having one endpoint |
| angle | consists of two different rays that have the same inital point called the vertex |
| opposite rays | two rays with a common endpoint going in opposite directions |
| adjacent angles | two angles that share a common vertex and side but have no common interior points |
| bisect | to cut an object into 2 congruent parts |
| segment bisector | a segment that bisects another segment into 2 congruent segments |
| angle bisector | a ray that bisects an angle into 2 congruent angles |
| midpoint | the point that divides a segment into 2 congruent parts |
| collinear | points on the same line |
| coplanar | points on the same plane |
| exterior points | points contained outside an angle |
| interior points | points contained inside an angle |
| parallel lines | 2 or more coplanar lines traveling in the same direction and never intersect |
| perpendicular lines | 2 coplanar lines that intersect to form 90 degree angles |
| postulate | a statement that is accepted as true without proof |
| theorem | a rule that has been proven |
| segment addition postulate | if B is between A, then AB + BC = AC |
| Angle addition postulate | if C is in the interior of angle AOD, then Angle AOC + COD = AOD |
Created by:
Ljg1237
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