Sample Cone Dimensioned with Half Angle
The Half Angle check box lets you display the angle axis (the A axis in the Axes area) at half its usual value. When you select this check box, the A axis in the Axes area changes to display A/2. In addition, the expanding grid area in the Feature Location dialog box and the dimension in the Edit window, Report window, and Diminfo boxes will also change to display the angle at half its value with label of A/2.