AcuteTriangleless than90degreesRightAngle90degreesIsosceles2 equalsides & 1differentsideEquilateral3 equalsides & 3equal acuteanglesScalene3differentsidesObtuseAnglegreaterthan 90degreesAcuteTriangleless than90degreesRightAngle90degreesIsosceles2 equalsides & 1differentsideEquilateral3 equalsides & 3equal acuteanglesScalene3differentsidesObtuseAnglegreaterthan 90degrees

Triangle Bingo - 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. less than 90 degrees
    Acute Triangle
  2. 90 degrees
    Right Angle
  3. 2 equal sides & 1 different side
    Isosceles
  4. 3 equal sides & 3 equal acute angles
    Equilateral
  5. 3 different sides
    Scalene
  6. greater than 90 degrees
    Obtuse Angle