# Angle calculated 135° instead of 136° Geogebra Classic 6

This does not seem to be a rounding error, because the actual angle is 136.028°, so if it get rounded, it would be in between 136..137. The correct angle can be quickly calculated e.g. with this online calculator https://www.triangle-calcul... (but I found the error for writing a test case for a function calculating an angle for my car bot).Steps to reproduce:

1. Press button "Create angle", and place it to points A=(1,0), B=(0,0), C=(-1,1), (as in illustration) (I had to place screenshot here https://imgur.com/a/O6FwH because site complains "path not found at" for images uploaded locally — I guess there's some silly timeout — deleting and reuploading the image doesn't help, and using a link doesn't do any better either).

Expected: the angle shown is 136°

Actual: the angle shows 135°

Additional info:

Geogebra version: 6.0.414.0-offline

OS: Archlinux.

The angle IS actually 135°.

Please note that line OC is the bisector of the 2nd and 4th quadrant of the plane.

Loading...Comments have been locked on this page!