1. Midpoint
    a segment is a point that divides a segment into two congruent segments. A midpoint, or any line, ray, or other segment through a midpoint, is said to bisect the segment
  2. Skew lines
    are noncoplanar, therefor, they are not parallel and don't intersect
  3. Parallel lines
    Are coplanar lines that don't intersect.
  4. Opposite rays
    ate two collinear rays with the same endpoint. Opposite rays always form a line.
  5. Ray
    The part of a line consisting of one end point and all the points of the line on one side of the endpoint.
  6. Segment
    The part of a line consisting of two endpoints and all points between them.
  7. Postulate or axiom
    is an accepted statement of fact
  8. Coplanar
    Points and lines in the same plane
  9. Plane
    is a flat surface that has no thickness
  10. Collinear Points
    Points that lie on the same line
  11. line
    A series of point that extends in two opposite directions without end. you can name a line by any two points on the line.
  12. Space
    is defined as the set of all points
  13. Point
    A point has no size.. It is represented by a small dot and is named by a capital letter..
  14. Counterexample
    To a conjecture is an example for which the conjecture is incorrect.
  15. Conjecture?
    A conclusion you reach using inductive reasoning.
  16. Inductive reasoning?
    The reasoning that is based on patterns you observe. If you observe a pattern in a sequence, you can use inductive reasoning to tell what the next terms in the sequence will be.
Card Set
chapter 1