Question | Answer |
Acute Angle | An angle smaller than 90 degrees but more than 0 degrees. |
Congruent Angles | Angles with the same measures. |
Coplanar | Points and lines in the same plane. |
Midpoint | The point that divides the segment into two congruent segments. |
Perpendicular Lines | Lines that intersect to form right angles |
Ray | The part of a line consisting of one endpoint and all the points of the line on one side of the endpoint. |
Space | the set of all points. |
Angle | Is formed by two rays with the same endpoint. |
Congruent Segments | Segments that have the same length. |
Counterexample | Disproves a conjecture. |
Obtuse Angle | An angle greater than 90 degrees. |
Plane | A flat surface that has no thickness and extend without end in all directions. |
Right Angle | 90 degree angle. |
Angle Bisector | Cuts an angle into two congruent angles. |
Conjecture | Is a conclusion reached through inductive reasoning. |
Inductive Reasoning | Reasoning based on observed patterns. |
Opposite Rays | Start at the same point and go in opposite directions. |
Point | Has no length, width, or thickness, but has a position. |
Segment | The part of a line consisting of two points, called endpoints, and all points between them. |
Collinear Points | Points that lie on the same line. |
Coordinate | The distance and direction from the origin of a number line. |
Line | Has no length, no width, or thickness. It extends without end in two directions. |
Parallel Lines | Lie in the same plane and do not intersect. |
Postulate | An accepted statement of fact. |
Skew Lines | Are noncoplanar lines. Therefore, they are not parallel and do not intersect. |