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Chapter 1 Vocabulary
Definition | Term |
---|---|
A location. It is represented by a dot. | Point |
A series of points that extends in two opposite directions without end. It is represented by a line with two arrowheads. | Line |
Parts of a line consisting of two endpoints. Line segments AB consist of two endpoints A and B and all the points between A and B. | Line Segment |
Ray XY consists of an endpoint X and all of the points on line XY in the direction of Y. | Ray |
Points that are on the same line. | Collinear Points |
Points that are on the same plane. | Coplanar Points |
Two rays that shear the same endpoint and extend in opposite directions. | Opposite Rays |
Two or more geometric figures intersect if they have one or more points in common. | Intersection |
A flat surface that has no thickness. It is represented by a shape that looks like a floor or a wall, but extends without end. | Plane |
Is an if then statement. | Conditional |
Is the part followed by the word if | Hypothesis |
Is the part following the word then. | Conclusion |
whether the statement is true or false. | The truth value of a statement is... |
"if q, then p', the hypothesis and the conclusion switch. | The converse of the conditional "if p, then q"... |
The converse is of a conditional exchange the hypothesis and conclusion. | Converse |
Is a case in which the hypothesis is true and the conclusion is false. | Counterexample |