There are several techniques for rotating 2D charts. You can’t rotate (or flip) 3D charts. If a 3D chart is grouped with 2D charts, you can rotate the group, but only the 2D charts in the group will rotate.
To resize a chart, select the entire chart, and then do any of the following:
Drag an active selection handle. Active selection handles have a black outline.
To maintain a chart’s proportions, hold down the Shift key as you drag to resize it.
To resize a chart in one direction, drag a side handle instead of a corner handle.
To resize by specifying exact dimensions, click Inspector in the toolbar and click the Metrics inspector button. Specify a new width, height, or angle of rotation in the appropriate fields. To maintain the relative proportions of the chart’s height and width, select the checkbox marked “Constrain proportions.”
To rotate 2D charts, select the entire chart, and then do any of the following:
Select the chart, hold down the Command key, move the pointer toward an active selection handle until it changes to a curved, double-headed arrow, and then drag a selection handle.
To rotate a chart in 45-degree increments, press the Shift and Command keys while dragging a selection handle.
Click Inspector in the toolbar, click the Metrics inspector button, and then drag the Rotate wheel or use the Angle controls to set the angle of the chart.
Pie charts can also be rotated using the Chart Inspector. See Rotating 2D Pie Charts.