Why is this false?

Question

It appears to be an easy question, but why does it return false?
https://code.sololearn.com/cIaq1vtJ878j/?ref=app

Answer 1

https://stackoverflow.com/questions/2100490/floating-point-inaccuracy-examples

Answer 2

Because floating point numbers aren't very accurate. Even the slightest difference between a, b, and c will return false, so comparing floating point numbers is generally not a good idea for statement or loop conditions.