Category:Definitions/Directed Angles

This category contains definitions related to Directed Angles.
Related results can be found in Category:Directed Angles.

Let $\LL_1$ and $\LL_2$ be two lines which intersect at a point $\PP$.

The directed angle from $\LL_1$ to $\LL_2$ is defined as the amount of rotation about $\PP$ required to bring $\LL_1$ into correspondence with $\LL_2$.

If the rotation about $\PP$ is anticlockwise, then the directed angle is positive in sign.

If the rotation about $\PP$ is clockwise, then the directed angle is negative in sign.