A Long List of Terms for Definitions:


  1. point
  2. line
  3. plane
  4. intersect
  5. collinear points
  6. coplanar points
  7. coplanar lines
  8. between
  9. segment
  10. endpoint
  11. midpoint
  12. segment bisector
  13. congruence
  14. ray
  15. angle
  16. interior of an angle
  17. exterior of an angle
  18. straight angle
  19. right angle
  20. obtuse angle
  21. acute angle
  22. adjacent angles
  23. vertical angles
  24. complementary angles
  25. supplementary angles
  26. angle bisector
  27. perpendicular lines
  28. polygon
  29. triangle
  30. vertices
  31. equilateral triangle
  32. isosceles triangle
  33. right triangle
  34. altitude of a triangle
  35. median of a triangle
  36. angle bisector of a triangle
  37. perpendicular bisector
  38. hypotenuse
  39. exterior angle of a triangle
  40. parallel lines
  41. skew lines
  42. alternate exterior angles
  43. alternate interior angles
  44. corresponding angles
  45. consecutive interior angles
  46. quadrilateral
  47. parallelogram
  48. trapezoid
  49. rhombus
  50. rectangle
  51. square
  52. concave polygon
  53. convex polygon
  54. regular polygon
  55. similarity
  56. circle
  57. centre
  58. diameter
  59. radius
  60. chord
  61. arc
  62. tangent
  63. central angle
  64. inscribed angle
  65. area
  66. perimeter
  67. circumference
  68. volume