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I found this dragon puzzle to practice special right triangles online, and I fell in love with it. Each of the triangles is a special right triangle.

I did a bit of research, and I was able to find the original source.

I also found the same problem in McDougal Littell’s *Geometry: An Integrated Approach*.

I printed the puzzle for students to glue in their trigonometry interactive notebooks.

My students got really involved in this problem, but they really complained about the size. I downsized it to fit in our notebooks, but there was so much going on in the problem that they soon ran out of room to label sides and angles.

In the future, I’d do this problem again, but I think I would print the dragon on an 11 x 17 cardstock so students can write ALL over it.

Here are several other online versions of the dragon puzzle that might be of interest to you:

## Free Download of Dragon Puzzle to Practice Special Right Triangles

Dragon Puzzle (PDF) (1494 downloads )

Dragon Puzzle (Editable Publisher File ZIP) (809 downloads )

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