Across
- 2. of a line (rise over run).
- 5. Lines that meet at a 90° angle.
- 8. "If A, then B."
- 10. statement assumed to be true.
- 11. Same size and shape.
- 14. : Planes that never intersect.
- 17. = A.
- 20. Lines that never meet.
- 21. line that crosses two or more lines.
- 22. Same position at each intersection.
- 24. and negated conditional.
- 25. angles: On the same side of the transversal, inside the lines.
- 26. conditional (If not A, then not B).
Down
- 1. if and only if B."
- 3. Two angles that form a straight line.
- 4. A = B and B = C, then A = C.
- 6. conditional (If B, then A).
- 7. Opposite angles formed by intersecting lines.
- 9. On opposite sides of the transversal, outside the lines.
- 12. that add up to 180°.
- 13. angles: On opposite sides of the transversal, inside the lines.
- 15. If A = B, then B = A.
- 16. "if" part of a conditional.
- 18. statement that’s been proven true.
- 19. unproven statement believed to be true.
- 23. that don’t intersect and aren’t parallel.
