When you add a geodatabase feature class that has representations to a map, it is drawn like any other feature class. You can change the layer's symbology properties to draw the representations.

To do so, right-click the layer and click Properties. Click the Symbology tab. You will see that the default renderer for newly added features in ArcMap is the Categories option. You will also see that there is a Representations option. This option is only available when a feature class has representations. Click Representations in the Show list on the dialog box. You will see a list of the available feature class representations for the feature class.

The representation rules for the feature class are listed in the center panel, and when you select one, its properties are shown on a series on tabbed panels to the right.

This feature class contains an Angle field. The Angle field contains values that define the angles of the buildings as they appear on the ground, relative to either geographic or arithmetic orientation. Although buildings are typically captured and modeled as simple point locations for topographic maps at this scale (1:24,000), it is cartographically desirable to portray them at their true orientation. You will see how to use the values in this field to orient building symbols later in this tutorial.