Across
- 1. the part of a conditional statement just after the word if
- 8. the point halfway between the endpoints of a line segment
- 10. angles whose angle measure is equal
- 11. part of a line between two points on the line, called endpoints of the segment
- 13. terms not formally defined and used to define other terms/concepts in a mathematical system
- 16. the study of plane and solid figures on the basis of axioms and theorems
- 18. determination of statement as either true or false
- 19. example used to disprove a statement
- 20. a straight one-dimensional figure that does not have a thickness, and it extends endlessly in both directions
- 21. a statement for which both the conditional and converse are true
- 23. the demonstration of a mathematical statement, true or false, using logic to arrive at a conclusion
- 25. the part of a conditional statement after then
- 26. words or terms used to describe new terms/concepts
Down
- 2. a line segment which bisects another line segment at 90 degrees, creating right angles
- 3. line segments whose lengths are equal
- 4. statements accepted as true without requiring proof
- 5. statement in which the hypothesis and conclusion of the original conditional statement are interchanged
- 6. two objects have the same size and shape
- 7. a line, line segment, ray, or point that cuts a line segment exactly in half
- 9. statement believed to be true but not yet proven
- 12. a statement that can be proved to be true based on known and proved facts
- 14. a flat surface that extends into infinity
- 15. construction of accurate representations of lengths, angles, and geometric figures using only a straight edge and compass
- 17. a line with a single endpoint that extends infinitely in one direction
- 22. models an exact location in space, and has no length, width, or thickness
- 24. a statement composed of a hypothesis (if) and a conclusion (then)