You can rotate 3D, radar, pie, or donut charts to adjust the angle and orientation of the chart. You may want to emphasize some data, for example, by positioning certain data at the top or bottom of the chart.
Rotate a 3D chart: Click the chart, then drag sidebar, click the Chart tab. In the Radar Chart section, drag the wheel next to Rotation Angle, or enter a degree value in the adjacent field to specify the angle at which you want to rotate the chart.
Rotate a pie chart: Click the chart, then in the Format Change the look of bars, wedges, and more in Pages on MacUse chart styles in Pages on Mac