rightangleparallellinesScaleneTriangleobtuse(n-2)x180triangleRadiuspolygonoctagonanglesat apointAngles ina semi-circlereflexIsoscelesTrianglesupplementaryhexagonperpendicularlinesDiameterAngles ona straightlinepentagonCongruentTangent-radiusruleacuteSimilarverticallyoppositestriaghtlinecorrespondinganglescomplementaryalternateanglesCo-interiorAnglesInternalanglesExternalanglesrightangleparallellinesScaleneTriangleobtuse(n-2)x180triangleRadiuspolygonoctagonanglesat apointAngles ina semi-circlereflexIsoscelesTrianglesupplementaryhexagonperpendicularlinesDiameterAngles ona straightlinepentagonCongruentTangent-radiusruleacuteSimilarverticallyoppositestriaghtlinecorrespondinganglescomplementaryalternateanglesCo-interiorAnglesInternalanglesExternalangles

Geometry Vocabulary - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. right angle
  2. parallel lines
  3. Scalene Triangle
  4. obtuse
  5. (n-2)x180
  6. triangle
  7. Radius
  8. polygon
  9. octagon
  10. angles at a point
  11. Angles in a semi-circle
  12. reflex
  13. Isosceles Triangle
  14. supplementary
  15. hexagon
  16. perpendicular lines
  17. Diameter
  18. Angles on a straight line
  19. pentagon
  20. Congruent
  21. Tangent-radius rule
  22. acute
  23. Similar
  24. vertically opposite
  25. striaght line
  26. corresponding angles
  27. complementary
  28. alternate angles
  29. Co-interior Angles
  30. Internal angles
  31. External angles