Geometry Crossword Puzzle

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Across
  1. 3. / where two rays or line segments meet
  2. 9. / the point that divides the segment into 2 congruent segments
  3. 11. property / a(b+c)=ab+bc
  4. 12. / an unproven statement or rule based on observation or examples
  5. 13. / a rule we accept as true but cannot be proven
  6. 14. / follows “then”
  7. 16. property / if a=b and b=c then a=c
  8. 20. pair / 2 adjacent angles that form a line
  9. 21. of detachment / if a conditional statement and its hypothesis are true, then the conclusion is also true
  10. 22. of syllogism / given 2 true conditionals with the conclusion of the first being the hypothesis of the second, there is a third true conditional having the hypothesis of the first and the conclusion of the second
  11. 27. / 2 angles that add up to 90
  12. 29. / 2 angles that add up to 180
  13. 30. reasoning / reaching a conclusion based on a pattern of specific examples based on
  14. 31. / a location and represented by a dot
  15. 32. / the part of a line that consists of 2 points called endpoints and all the points between them
  16. 34. angles / a pair of angles whose sides are opposite rays
  17. 37. / obtained by taking the converse and negating both the hypothesis and conclusion
  18. 38. equivalent / both statements have the same truth value
Down
  1. 1. / reverses the hypothesis and conclusion of a conditional
  2. 2. bisector / a line, ray, or segment that is perpendicular to the segment and divides the segment into 2 congruent segments
  3. 4. property / a=a (everything =’s itself)
  4. 5. / an infinite number of points on a straight path that extends with no end
  5. 6. / obtained by negating both the hypothesis and conclusion of a conditional
  6. 7. property / if a=b, then b=a
  7. 8. lines / lines that never intersect
  8. 10. rays / rays with the same endpoint that lie on the same line and go in opposite directions
  9. 12. / an example that shows that a statement is false
  10. 15. points / points that lie on the same line
  11. 17. / the opposite meaning of the original statement
  12. 18. / a conjecture that is proven
  13. 19. / if a=b then b can replace a in any expression
  14. 23. bisector / a ray that divides an angle into 2 congruent angles
  15. 24. / an if then statement that relates a hypothesis to a conclusion
  16. 25. / the part of a line that consists of one endpoint and all the points of the line on one side of the point
  17. 26. / an infinite number of points and lines on a flat surface that extends with no end
  18. 28. / follows “if”
  19. 33. / lines intersect at right angles
  20. 35. / a co planar line that intersects 2 or more lines at different points
  21. 36. / 2 angles that are the same