Parallel Lines Vocabulary Crossword by Keith Harrell-Mitchell

Edit Answers
1234567891011121314151617181920212223242526272829
Across
  1. 3. Occurs when a transversal line crosses two parallel lines
  2. 5. Two angles that add up to 180 degrees
  3. 8. A binary relation where every element is related to itself
  4. 9. Each of the pairs of opposite angles made by two intersecting lines
  5. 13. Finding the opposite or inverse of a statement, proposition, or value, often represented by symbols like "~" or "¬"
  6. 14. Two adjacent angles that add up to 180°
  7. 16. If X = Y and Y = Z, then X = Z
  8. 18. The final statement derived from a set of arguments
  9. 20. If not X, then not Y
  10. 21. A pair of angles that are on opposite sides of a transversal and outside of two parallel lines
  11. 22. Two lines neither parallel nor intersecting
  12. 23. An example that demonstrates a statement or theory is false, by showing a case where the premise is true, but the conclusion is false
  13. 24. A number that describes the direction of the line on a plane
  14. 25. Statements assumed to be true without any requirement of proof
  15. 26. True if and only if both the antecedent (X) and consequent (Y) have the same truth value (both true or both false)
  16. 27. A rule in algebra or other branches of mathematics expressed by symbols or formulae
  17. 29. A line that passes through two lines in the same plane at two distinct points
Down
  1. 1. Formed when a transversal line intersects two other lines, and they are on the same side of the transversal and between the two lines
  2. 2. When two shapes have the same shape and size
  3. 4. Two lines that never intersect
  4. 6. When two parallel lines are crossed by a transversal, the pair of angles formed on the inner side of the parallel lines, but on the opposite sides of the transversal
  5. 7. A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation
  6. 10. If not Y, then not X
  7. 11. Two angles in different groups, outside the parallel lines and are on the same side of the transversal
  8. 12. If X, then Y
  9. 15. If Y, then X
  10. 17. Two straight lines that intersect or meet at a right angle
  11. 19. A conclusion or a proposition that is proffered on a tentative basis without proof
  12. 22. Made up of exactly similar parts facing each other or around an axis
  13. 28. Planes that never intersect, meaning they maintain a constant distance from each other