Angle Dimensioning, Parallel Dimensions
2-D Dimensioning + Text > Angle > Parallel dimension, via lines 
2-D Dimensioning + Text > Angle > Chain 
> Parallel dimension, via points 
This function generates parallel dimensions. All dimensioning units are created from a common start point.
- Identify the two sides of the first angle.
- Specify the point for the position of the first dimension arc and define the succeeding angles.
Parallel dimensioning draws the innermost and outermost projection line only once. The projection lines that are not required are automatically hidden.
(1) First side
(2) Second side
(3) Point for dimension arc
(4) Point for further angle
