If all the anglesare less than90 degrees,then it is anacute angle.An isoscelestriangle They have2 interior anglesthat are the same.These are calledthe base angles. This famoustriangle is intheCaribbean.What is it?A triangleis a 2-DshapeArea of atriangle islength xwidth dividedby 2All of atriangle'ssides arestraightIf one of theangles is greaterthan 90 degrees,then it can also becalled an obtusetriangle.In a righttriangle, theother twoangles willadd up to 90º Each side ofanequilateraltriangle is 60degrees.An isoscelestriangle hastwo sidesthat are thesame.The longestside of a right-angled triangleis called thehypotenuse. Bridges canbe made upof triangles.Pyramidsare alsotrianglesTrianglescan onlyhave threesidesEach anglein anequilateraltriangle is 60degreesSlashes in atriangle helptell you if thetriangle hasequal sides.A trianglehas threecornersOne of theangles is aright angle= 90º. Trianglesadd up to180degreesAnequilateraltriangle hasthree equalsidesTrianglelines cannever becurvedSandwichesare a typeof triangleTriangleshavethreesidesIf all the anglesare less than90 degrees,then it is anacute angle.An isoscelestriangle They have2 interior anglesthat are the same.These are calledthe base angles. This famoustriangle is intheCaribbean.What is it?A triangleis a 2-DshapeArea of atriangle islength xwidth dividedby 2All of atriangle'ssides arestraightIf one of theangles is greaterthan 90 degrees,then it can also becalled an obtusetriangle.In a righttriangle, theother twoangles willadd up to 90º Each side ofanequilateraltriangle is 60degrees.An isoscelestriangle hastwo sidesthat are thesame.The longestside of a right-angled triangleis called thehypotenuse. Bridges canbe made upof triangles.Pyramidsare alsotrianglesTrianglescan onlyhave threesidesEach anglein anequilateraltriangle is 60degreesSlashes in atriangle helptell you if thetriangle hasequal sides.A trianglehas threecornersOne of theangles is aright angle= 90º. Trianglesadd up to180degreesAnequilateraltriangle hasthree equalsidesTrianglelines cannever becurvedSandwichesare a typeof triangleTriangleshavethreesides

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