Question | Answer |
Acute Angles | An angle that is less than 90 degrees |
Congruent Angles | Angles that are the same to each other |
Coplanar | Points and lines on the same planes |
Midpoint | A point that divides a segment into two congruent segments. It BISECTS the segment. |
Perpendicular Lines | Lines that intersect to form right angles |
Ray | A part of a line that consists of an intial point and all points on the line that lie on the side of the point |
Space | Boundless 3-dimensional set of all points |
Angle | Two rays connected at their endpoints where they connect is the VERTEX |
Congruent Segments | two segments with the same length |
Counterexample | enough information to disapprove a conjecture |
Obtuse Angle | An angle more then 90 degrees |
Plane | Flat surface that has no thickness, it extends without and in ALL directions |
Right Angle | An angle that is exactly 90 degrees |
Angle Bisector | Cuts and angle into two congruent angles |
Conjecture | Is a conclusion reached through inductive reasoning |
Inductive Reasoning | Is reasoning based on observed petterns |
Opposite Rays | Start at the same point....and go in different directions |
Point | Has no length, width, or thickness but has a position |
Segment | A portion of a line between two points called end points |
Collinear Points | Points that lie on the same line |
Coordinate | A number that is associated with a point on a line |
Line | Has no length, width, or thickness. It extends without ends in two directions |
Parallel Lines | Lines that never meet |
Postulate | The distance between any two points on a number line is the absolute value of the difference of the corresponding numbers |
Skew Lines | Are noncoplanar lines. Therefore, they are not parallel and do not intersect |