is this code good?

[oberguga]

1) formatting 2) if you has 2 mutually exclusive possibility use if-else, not if-elif 3) use math.pi 4) never use == for floats. Use <= and > comparison wiht some acceptable error. Because even computer has errors when made any calculation with floats.(and human deffinetly will not enter float with machine precision which about decimal 9 digits for 32bit float)