Can You Count The Number of Triangles?

Inmany geometric figures, a shape can be composed of smaller versions of that shape. For example, by piecing four identical squares squares together, we can form a bigger square that’s 4 times as large. If I asked you how many squares there are, you’d know it’s 4 small squares plus the large one, so it’s 5 

Today’s challenge is an extension of that, on a square made of colorful triangles

Here’s a hint: rotational symmetry …

I recommend you pause the article, grab your pen and paper, and give this a go. When you are ready, keep reading for the solution! 

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