This famoustriangle is intheCaribbean.What is it?Pyramidsare alsotrianglesTrianglesadd up to180degreesIn a righttriangle, theother twoangles willadd up to 90º Trianglescan onlyhave threesidesAn isoscelestriangle hastwo sidesthat are thesame.If one of theangles is greaterthan 90 degrees,then it can also becalled an obtusetriangle.An isoscelestriangle They have2 interior anglesthat are the same.These are calledthe base angles. If all the anglesare less than90 degrees,then it is anacute angle.TriangleshavethreesidesBridges canbe made upof triangles.Area of atriangle islength xwidth dividedby 2Each side ofanequilateraltriangle is 60degrees.Anequilateraltriangle hasthree equalsidesEach anglein anequilateraltriangle is 60degreesThe longestside of a right-angled triangleis called thehypotenuse. A triangleis a 2-DshapeSlashes in atriangle helptell you if thetriangle hasequal sides.All of atriangle'ssides arestraightSandwichesare a typeof triangleTrianglelines cannever becurvedA trianglehas threecornersOne of theangles is aright angle= 90º. This famoustriangle is intheCaribbean.What is it?Pyramidsare alsotrianglesTrianglesadd up to180degreesIn a righttriangle, theother twoangles willadd up to 90º Trianglescan onlyhave threesidesAn isoscelestriangle hastwo sidesthat are thesame.If one of theangles is greaterthan 90 degrees,then it can also becalled an obtusetriangle.An isoscelestriangle They have2 interior anglesthat are the same.These are calledthe base angles. If all the anglesare less than90 degrees,then it is anacute angle.TriangleshavethreesidesBridges canbe made upof triangles.Area of atriangle islength xwidth dividedby 2Each side ofanequilateraltriangle is 60degrees.Anequilateraltriangle hasthree equalsidesEach anglein anequilateraltriangle is 60degreesThe longestside of a right-angled triangleis called thehypotenuse. A triangleis a 2-DshapeSlashes in atriangle helptell you if thetriangle hasequal sides.All of atriangle'ssides arestraightSandwichesare a typeof triangleTrianglelines cannever becurvedA trianglehas threecornersOne of theangles is aright angle= 90º. 

Triangles - 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. This famous triangle is in the Caribbean. What is it?
  2. Pyramids are also triangles
  3. Triangles add up to 180 degrees
  4. In a right triangle, the other two angles will add up to 90º
  5. Triangles can only have three sides
  6. An isosceles triangle has two sides that are the same.
  7. If one of the angles is greater than 90 degrees, then it can also be called an obtuse triangle.
  8. An isosceles triangle They have 2 interior angles that are the same. These are called the base angles.
  9. If all the angles are less than 90 degrees, then it is an acute angle.
  10. Triangles have three sides
  11. Bridges can be made up of triangles.
  12. Area of a triangle is length x width divided by 2
  13. Each side of an equilateral triangle is 60 degrees.
  14. An equilateral triangle has three equal sides
  15. Each angle in an equilateral triangle is 60 degrees
  16. The longest side of a right-angled triangle is called the hypotenuse.
  17. A triangle is a 2-D shape
  18. Slashes in a triangle help tell you if the triangle has equal sides.
  19. All of a triangle's sides are straight
  20. Sandwiches are a type of triangle
  21. Triangle lines can never be curved
  22. A triangle has three corners
  23. One of the angles is a right angle = 90º.