‹Geometry Crossword Puzzle

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Across
  1. 2. a law of logic that states that given two true conditionals with the conclusion of the first being the hypothesis of the second, there exists a third true conditional having the hypothesis of the first and the conclusion of the second
  2. 5. a ray that divides an angle into 2 congruent angles
  3. 6. an unproven statement or rule based on observations or examples
  4. 8. reverses the hypothesis and conclusion of a conditional
  5. 9. infinite number of points and lines on a flat surface that extends without end and has no thickness
  6. 15. the part of a line that consists of one endpoint and all the points of the line on one side of the endpoint.
  7. 16. a pair of numbers which are used to determine the position of a point or a shape in a 2-dimensional plane.
  8. 18. described as a location and represented by a dot
  9. 20. points that lie on the same line
  10. 21. exactly equal shape and size
  11. 23. a line, ray,or segment that is perpendicular to the segment and divides the segment into 2 congruent segments
  12. 26. rays with the same endpoint that lie on the same line and go in opposite directions
  13. 28. a point where two or more curves, lines, or edges meet
  14. 29. infinite number of points on a straight path that extends in 2 opposite directions with no end and has no thickness
  15. 31. an example that shows that a statement is false
  16. 33. a tool used for drawing straight lines, or checking their straightness
Down
  1. 1. two angles that add up to 180
  2. 3. combines a conditional and its converse by connecting the hypothesis and conclusion with "if and only if"
  3. 4. the opposite meaning of the original statement
  4. 7. If a=b and b=c, then a=c
  5. 10. a rule we accept as true but cannot be proven
  6. 11. If a=b, then b=a
  7. 12. two angles that add up to 90 degrees
  8. 13. uses given and previously known facts to reach a logical conclusion.
  9. 14. obtained by taking the converse and negating both the hypothesis and conclusion
  10. 17. lines that intersect at right angles
  11. 19. reaching a conclusion based on a pattern of specific examples of past events
  12. 22. a law of logic that states if a conditional statement and its hypothesis are true, then the conclusion is also true
  13. 24. obtained by negating both the hypothesis and conclusion of a conditional
  14. 25. part of a line that consists of two points called endpoints and all the points between them
  15. 27. an if-then statement that relates a hypothesis to a conclusion
  16. 30. a=a (everything equals itself)
  17. 32. a semicircular geometry tool divided into 180 equal parts, each measuring 1°.