Across
- 2. points are points that lie in the same plane
- 4. geometry based on logical reasoning and a set of postulates
- 6. measurable part of a line that consists of two points and all the points between them
- 7. point half way between the endpoints of the segment
- 10. a statement or conjecture that can be proven true using undefined terms, definitions, and postulates
- 11. segments, line, plane, or point that bisects a segment
- 12. defined as a boundless three-dimensional set of all points
- 14. a statement that is accepted as true without proof
- 16. set of points they have in common, where two lines or planes cross
- 17. a midpoint separates a segment into two congruent segments
- 19. a statement that is accepted as true without proof
- 20. flat surface made up of points that extends infinitely in all directions
- 21. geometry using a coordinate system
Down
- 1. terms, words, usually readily understood, not formally explained
- 2. two segments that have the same measure
- 3. same distance from endpoints to midpoints
- 5. terms, terms that have a definition and can be explained
- 8. points are points that lie on the same line
- 9. a real number n between two real numbers a and b
- 13. an explanation that assigns properties to a mathematical object
- 15. made up of points and has no thickness or width
- 18. two geometric figures have exactly the same shape and size
- 20. location. it has neither shape nor size