With the Form option for a dimensioned feature (Insert | Dimension), you can analyze dimensional information for a feature's location and a feature's form at the same time.
You must select the Form check box in the Axes area of the dialog box to use the Analysis area to report on a feature's form. See "Default Axes" for additional information.
Selecting Form acts as if you automatically selected the Both option as well, since both a graphical and a textual analysis are generated.