Inquire Angle 3 Point (3D/2D)

Inquire
Angle
Use this command to inquire the included angle between any three points. The first point defines the vertex of the angle and the remaining two define the included vectors.
The Variable option can be used to assign the queried
angle to a variable and log the variable to the active part's history.
This contributes to the "family-of-parts" functionality by allowing
the part to be driven during a history regen by variables derived from
queried distances and angles.
Base point - Pick a point to define the vertex.
1st point - Pick a point to define the first vector.
2nd point - Pick a point to define the second vector or move the cursor over additional points. The included angle calculated by each is displayed in the Angle field.
Variable
You can use this option to log a variable to the active part's history whose value equals the inquired angle. The variable can then be used in any expression, equation or VX macro.