MichalPokorny/khan-exercises — comment on commit 4528ca0d6ed6d8b3f54a51f998b463e84048580c
File:  line 0
By Christi:

Since you refer to the "distance" you might want to use the distance formula in the hints instead of deriving it from Pythagorean Theorem. (It's not incorrect, but best to keep it simple.