Chapter 1 Geometry

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Across
  1. 1. A statement accepted as true without proof
  2. 3. Two angles whose measures add up to 180 degrees
  3. 5. Points that lie on the same plane
  4. 7. A part of a line that has one endpoint and extends infinitely in one direction
  5. 10. Two angles that are opposite each other when two lines intersect
  6. 14. A type of angle that measures between 90 and 180 degrees
  7. 16. The exact location of something in space
  8. 17. angles that share a common ray
  9. 19. A ray that divides an angle into two equal angles
  10. 20. The region between two rays of an angle
  11. 23. Two angles whose measures add up to 90 degrees
  12. 24. The point that divides a segment into two equal parts
Down
  1. 2. A segment that divides another segment into two congruent parts
  2. 4. The point where two lines or rays meet
  3. 6. A flat surface that extends infinitely in all directions
  4. 8. Two points that determine the length of a segment
  5. 9. Points that lie on the same line
  6. 11. The sides of an angle are two of these
  7. 12. An angle smaller than 90 degrees
  8. 13. A part of a line with two endpoints
  9. 15. The part of the figure outside the angle
  10. 16. Equal in measure or length
  11. 18. A figure formed by two rays with a common endpoint
  12. 21. A triangle with one angle equal to 90 degrees
  13. 22. The common endpoint of two rays that form an angle