The three interior angles of any triangle add up to 180 degrees and they can be measured with a protractor.
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I think it has something to do with their angles all adding up to 360 degrees! If you take the internal angle measure of a hexagon (150 I think) and add it up to the 90 degrees in a square and the 60 degrees in an equilateral triangle, you get 360! so it all works out. But squares and hexagons can only tessellate with equilateral triangles so bear that in mind. I think it has something to do with their angles all adding up to 360 degrees! If you take the internal angle measure of a hexagon (150 I think) and add it up to the 90 degrees in a square and the 60 degrees in an equilateral triangle, you get 360! so it all works out. But squares and hexagons can only tessellate with equilateral triangles so bear that in mind.
3 sided shapes are triangles
how are the odd numbers arranged Pascal's Triangle?