Across
- 3. Triangle with all congruent sides.
- 6. Triangle with at least two congruent sides.
- 7. Set of points that extends infinitely in all directions.
- 12. An angle whose measure is exactly 90.
- 13. Statement that is accepted without proof.
- 16. Statement that must be proven.
- 18. A pair of angles on the same side of a transversal that lie outside of a pair of lines.
- 22. A polygon tha does not "cave in"
- 23. An example that proves a given statement false.
- 25. Figures with the same shape and size.
- 30. A pair of angles on opposite sides of a transversal that lie outside of a pair of lines.
- 31. Triangle with one 90 degree angle.
- 33. Part of an "if-then" statement that follows the "then".
- 34. Two angles whose sides are opposite rays.
- 37. An "if-then" statement p -> q.
- 38. Part of a line consisting of one endpoint and all points extending infinitely in one direction.
- 40. Set of points that extends infinitely in two directions.
- 41. An angle whose measure is between 90 & 180.
- 42. Part of an "if-then" statement that follows the "if".
- 46. Lines that intersect to form right angles.
- 47. A conditional formed by interchanging & negating the hypothesis & conclusion: ~q -> ~p.
- 48. Points that lie on the same line.
- 49. Triangle with all angles less than 90.
- 50. Two angles whose sum is 180.
- 51. Triangle with all congruent angles.
- 52. A pair of angles on opposite sides of a transveral that lie between a pair of lines.
Down
- 1. Line that intersects two other lines.
- 2. Part of a line consisting of two endpoints and all the points between them.
- 4. Negation of a conditional: ~p -> ~q.
- 5. The property that justifies a segment or angle being congruent to itself.
- 8. Two coplanar angles with a common side, common vertex, and no common interior points.
- 9. Side opposite the right angle in a right triangle.
- 10. Line (or "part" of a line) that divides an angle or segment into two equal parts.
- 11. A logical Argument written with numbered statements & reasons.
- 14. The ratio of vertical change to horizontal change.
- 15. Two angles that contain the base of an isosceles triangle.
- 17. Point that divides a segment into two congruent segments.
- 18. Noncoplanar lines that do not intersect.
- 19. Two angles whose sum is 90.
- 20. The angle formed by the two congruent sides of an isosceles triangle.
- 21. Coplanar lines that do not intersect.
- 24. A pair of angles that lie in the same position with respect to two lines and a transversal.
- 26. Triangle with no congruent sides.
- 27. A type of reasoning based on facts such as definitions, postulates, & theorems.
- 28. An angle whose measure is exactly 180.
- 29. Three or more points that lie on the same plane.
- 32. Rays that share the same endpoint and form a line.
- 35. Triangle with one angle greater than 90.
- 36. A pair of angles on the same side of a transversal that lie between a pair of lines.
- 39. An angle whose measure is between 0 & 90.
- 43. A geometric figure with no measurable size and shape.
- 44. An equilateral & equiangular polygon.
- 45. Flipping a conditional: q -> p.