Creating an Angular Ruler Dimension

Select the Move tool and switch to Section mode.

Select the section line (that represents a face) that you want to rotate.

(Optional) Anchor the Move handle to the object around which you want to rotate by dragging the center sphere or using the Anchor tool guide.

Select the rotational axis of the Move handle.

Select Create Ruler Dimension from the Options panel or right-click and select it from the mini-toolbar.

An angular dimension indicator appears from the red linear axis of the Move handle.

Select the end reference for the angular dimension.

Enter a value for the dimension.