Across
- 2. geometric element that is a location only
- 6. two-dimensional figure in a plane bounded by line segments
- 8. sum of the lengths of all sides
- 10. tool used for drawing circles and arcs
- 11. from Greek words for "earth" and "measure"
- 12. tool for drawing line segments
- 14. Euclid described it as a "breadthless length" that extends without end in both directions
- 15. tool for measuring the degrees in an angle
- 19. man who first presented geometry as a logical system of connected ideas
- 20. point where two lines meet
- 23. pair of rays that have the same endpoint
- 24. title of book written by Euclid circa 600 B.C.
- 25. points that are contained by the same line
- 27. the shared endpoints of two rays that form an angle
- 29. type of reasoning based on observations
- 30. part of a line bounded by two endpoints
- 31. geometric drawings
Down
- 1. polygon bounded by four sides
- 3. points that are not contained by any single line
- 4. points that are contained in the same plane
- 5. word
- 7. lines that contain the same point
- 9. part of a line that extends endlessly in one direction
- 11. type of reasoning based on logic
- 13. distance between the center of a circle and any point on it
- 15. three-dimensional figure in space bounded by polygons
- 16. polygon bounded by eight sides
- 17. polygon bounded by five sides
- 18. polygon bounded by three sides
- 21. set of all points in a plane that are a fixed distance from a given point in the plane
- 22. flat unbounded surface
- 26. the number of unit squares equal in measure to its surface
- 28. polygon bounded by six sides