Geometry Definitions

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Across
  1. 1. angles share a vertex and a side
  2. 3. angles whose sum is 90
  3. 5. AB+BC=AC
  4. 6. at a 90 degree angle
  5. 9. angle measure between 90 and 180
  6. 12. lines in the same plane that don't intersect
  7. 13. a line that intersects 2 or more lines
  8. 15. less than 90
  9. 18. points on the same line
  10. 20. part of a line
  11. 23. have same size and measure
  12. 24. exactly in the middle
  13. 25. angle that measures exactly 90
Down
  1. 2. if a=b and b=c, then a=c
  2. 4. straight, continuous path that extends forever
  3. 7. angles whose sum is 180
  4. 8. flat surface with no thickness
  5. 10. how steep a line is; rise/run
  6. 11. made of 2 rays with a common endpoint
  7. 14. angle ABD+angle BDC=angle ABC
  8. 16. angles opp each other when two lines cross.
  9. 17. an exact location, no size
  10. 19. has an endpoint
  11. 21. cuts an angle in 2 equal parts
  12. 22. point where 2 or more line segments meet