251457
| Question | Answer |
| Undefined Terms | Cannot be defined by using other figures. |
| Point | Names a location and has no size. It is represented by a dot. |
| Line | A straight path that has no thickness and extends forever. |
| Plane | A flat surface that has no thickness and extends forever. |
| Collinear | Points that lie on the same line. |
| Coplaner | Points that lie in the same plane. |
| (Line) Segment | Part of a line consisting of two points and all points between them. |
| Endpoint | Point at one end of a segment or starting point of a ray. |
| Ray | Part of a line that starts at an endpoint and extends forever in one direction. |
| Opposite Rays | Two rays that have a common endpoint and form a line. |
| Postulate (axiom) | A statement that is accepted as true without proof. |
| Distance | Between any two points is the absolute value of the difference of the coordinates. |
| Length | The distance between two points. |
| Congruent Segments | Segments that have the same length. |
| Construction | A way of creating a figure that is more precise. |
| Midpoint | The point that bisects the segment into two content segments. |
| Bisects | Divides |
| Segment Bisector | Any ray, segment, or line that intersects a segment at its midpoint. |
| Angle | A figure formed by two rays, or sides with a common endpoint. |
| Vertex | Common end point of an angle. |
| Interior of an angle | Set of all points between the sides of the angle. |
| Exterior of an angle | Set of all points outside the angle. |
| Measure | Usually given in degrees |
| Degree | 1/360 of a circle. |
| Acute Angle | Measures greater than 0 and less than 90. |
| Right Angle | Measures 90 |
| Obtuse Angle | Measures greater than 90 and less than 180 |
| Straight Angle | Measures 180. |
| Congruent Angles | Angles that have the same measure. |
| Angle Bisector | Ray that divides an angle into two congruent angles. |
| Adjacent Angles | Two angles in the same plane with a common vertex and a common side, but no common interior points. |
| Linear Pair | A pair of adjacent angles whose non-common sides are opposite rays. |
| Complementary Angles | Two angles whose measures have a sum of 90. |
| Supplementary Angles | Two angles whose measures have a sum of 180. |
| Vertical Angles | Two nonadjacent angles formed by two intersecting lines. |
| Coordinate Plane | Plane that is divided into four regions by a horizontal line (x-axis) and a vertical line (y-axis). |
| Midpoint formula | M([x1+x2]/2 , [y1+y2]/2) |
| Distance Formula | Square Root of ((x2-x1)^2 + (y2-y1)^2) |
| Legs | Two sides that form the right angle. |
| Hypotenuse | The side across from the right angle that stretches from one leg to the other. |
Want to create your own Flashcards for free with GoConqr? Learn more.