Tangent-radiusrulecomplementaryparallellinesrightangleAngles ona straightlineacutepentagoncorrespondinganglesCongruentreflexExternalanglesRadiusverticallyoppositeperpendicularlinesobtuseanglesat apoint(n-2)x180IsoscelesTriangleCo-interiorAnglesoctagonInternalanglesstriaghtlinealternateanglesSimilarAngles ina semi-circleScaleneTriangleDiametersupplementarypolygonhexagontriangleTangent-radiusrulecomplementaryparallellinesrightangleAngles ona straightlineacutepentagoncorrespondinganglesCongruentreflexExternalanglesRadiusverticallyoppositeperpendicularlinesobtuseanglesat apoint(n-2)x180IsoscelesTriangleCo-interiorAnglesoctagonInternalanglesstriaghtlinealternateanglesSimilarAngles ina semi-circleScaleneTriangleDiametersupplementarypolygonhexagontriangle

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