Do the triangles match?

You will write functions that compare the sides of two triangles, test for similarity by SSS, and find a height from a shadow.

Your tasks.

1. In side_ratios, sort the sides of each triangle, and return the list of ratios y / x for the matching sides.
2. In is_similar, return True when all the ratios are equal, to within $10^{-9}$.
3. In height_from_shadow, return the height of an object from the pole's height and the two shadows. Then set tree to the height of a tree whose shadow is $24$ m, using a $5$ m pole with a $3$ m shadow.