Geometry Vocabulary

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Across
  1. 3. An angle that measures exactly 90
  2. 9. Switching and negating the hypothesis and conclusion
  3. 13. Two or more lines that lie in the same plane and never intersect
  4. 14. Two angles that have the same vertex, share a side, and do not overlap
  5. 18. Two lines intersecting to form four right angles
  6. 19. Points that do not lie on the same line
  7. 20. A statement that is proven true using postulates, definitions, and previously proven theorems
  8. 25. segment at a right angle
  9. 27. An “educated guess” that is based on examples in a pattern
  10. 28. Points and/or lines that are not within the same plane
  11. 30. When two geometric figures have the same shape and size
  12. 32. A point at the end of a line
  13. 34. on the interior
  14. 36. Angles that measure between 0 and less than 90
  15. 37. A line with two endpoints
  16. 40. Two angles that add up to 90
  17. 41. The study of reasoning
  18. 42. Two rays with the same endpoint
  19. 47. ray that divides an angle into two congruent angles
  20. 48. Infinitely many points that extend forever in both directions
  21. 49. An angle that measures exactly 180
  22. 50. A statement with a hypothesis followed by a conclusion
  23. 51. The second, or “then,” part of a conditional statement
  24. 52. Switching the hypothesis and conclusion
  25. 53. A point or line where lines, planes, segments or rays crosses
  26. 54. To determine how far apart two geometric objects are
  27. 55. Making conclusions based upon examples and patterns
Down
  1. 1. Two angles that are on the same side of the transversal and in similar positions
  2. 2. Basic rules of geometry
  3. 4. A line that intersects two other lines
  4. 5. The set of all points expanding in three dimensions
  5. 6. Points that lie on the same line
  6. 7. Drawing conclusion from facts
  7. 8. A line with one endpoint and extends forever in the other direction
  8. 10. Two angles that are on the exterior, but also on opposite sides of the transversal
  9. 11. The two rays that form an angle
  10. 12. Two angles that add up to 180
  11. 15. Points and/or lines within the same plane
  12. 16. Two non-adjacent angles formed by intersecting lines
  13. 17. When the original statement and converse are both true
  14. 21. A point on a line segment that divides it into two congruent segments
  15. 22. Two angles that are on the same side of the transversal
  16. 23. Two angles that are on the interior, but on opposite sides of the transversal
  17. 24. Negating the hypothesis and conclusion
  18. 26. line, ray or segment that passes through the midpoint of another segment and intersects
  19. 29. The common endpoint of the two rays that form an angle
  20. 31. Two angles that are adjacent and the non-common sides form a straight line
  21. 33. Cuts a line segment into two congruent parts and passes through the midpoint
  22. 35. The length between two points
  23. 38. Lines that are in different planes and never intersect
  24. 39. Angles that measure more than 90 and less than 180
  25. 43. The first, or “if,” part of a conditional statement
  26. 44. An example that disproves a conjecture
  27. 45. An exact location in space.
  28. 46. Infinitely many intersecting lines that extend forever in all directions