Geometry

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Across
  1. 1. Non-adjacent exterior angles on opposite sides of a transversal.
  2. 4. Two angles that add up to 90 degrees.
  3. 6. The set containing elements common to two or more sets.
  4. 9. Exterior angles on the same side of a transversal.
  5. 11. A conditional and its contrapositive are equivalent.
  6. 12. Figure can be folded into two matching halves.
  7. 13. Replacing a quantity with an equal value.
  8. 19. An angle formed by a side and an extension of an adjacent side.
  9. 20. Turning in the opposite direction of a clock.
  10. 22. Having the exact same shape and size.
  11. 23. The point that divides a segment into two equal parts.
  12. 24. A triangle with all three sides equal.
  13. 26. A part of a line with one endpoint extending infinitely.
  14. 29. A statement accepted as true without proof.
  15. 30. Negates both the "if" and "then" parts.
  16. 35. Congruence by Side-Side-Side.
  17. 37. Adjacent angles that form a straight line.
  18. 38. Non-adjacent interior angles on opposite sides of a transversal.
  19. 40. A dilation that creates a larger image.
  20. 42. A flat, two-dimensional surface extending infinitely.
  21. 45. Congruence by Angle-Side-Angle.
  22. 47. Angles in the same relative position at each intersection.
  23. 48. A straight path that extends infinitely in both directions.
  24. 50. Uses the phrase "if and only if."
  25. 52. The length of the path between two points.
  26. 53. The ratio of the image length to the preimage length.
  27. 55. A triangle with no equal sides.
  28. 56. Two angles that add up to 180 degrees.
  29. 59. The longest side of a right triangle.
  30. 60. Congruence by Angle-Angle-Side.
  31. 62. An angle measuring between 90 and 180 degrees.
  32. 63. An angle measuring less than 90 degrees.
  33. 65. One of the two shorter sides of a right triangle.
  34. 66. The common endpoint of two rays forming an angle.
Down
  1. 2. A triangle with at least two equal sides.
  2. 3. Switches and negates both parts.
  3. 5. A line that crosses two or more lines.
  4. 7. If p to q and q to r, then p to r.
  5. 8. Two lines in a plane that never intersect.
  6. 10. A specific case that proves a statement false.
  7. 14. If a = b, then b = a.
  8. 15. Turning in the same direction as a clock.
  9. 16. An angle measuring exactly 90 degrees.
  10. 17. A mathematical statement that has been proven true.
  11. 18. Opposite angles formed by intersecting lines.
  12. 21. If a = b and b = c, then a = c.
  13. 25. Resizing a figure to make it larger or smaller.
  14. 26. Flipping a figure over a line.
  15. 27. The steepness of a line; rise over run.
  16. 28. The original figure before a transformation.
  17. 31. Sliding a figure without turning or flipping it.
  18. 32. A dilation that creates a smaller image.
  19. 33. Congruence for right triangles: Hypotenuse-Leg.
  20. 34. Congruence by Side-Angle-Side.
  21. 36. Having the same shape but different size.
  22. 39. Property stating a quantity is equal to itself (a = a).
  23. 41. An angle inside a polygon.
  24. 43. The set containing all elements of two or more sets.
  25. 44. A part of a line with two endpoints.
  26. 46. Figure looks the same after a 180 degree rotation.
  27. 47. Interior angles on the same side of a transversal.
  28. 49. Two lines that intersect at a 90 degree angle.
  29. 51. Angles that share a common side and vertex.
  30. 54. If p to q is true and p is true, then q is true.
  31. 57. Turning a figure around a center point.
  32. 58. A line or ray that divides something into two equal parts.
  33. 61. The figure resulting from a transformation.
  34. 64. Switches the "if" and "then" parts.