2. Secondly, click Insert-Shape-Rectangle-Drag a rectangle in the edit box, select Format -3D Effect -3D Effect drop-down arrow-select a sample, and display a rectangular figure in PPT.
3. Then, double-click the selected rectangle-Format-3D Effect Drop-down Arrow Depth-Select Point Size to adjust the front and back width of the rectangle. The eight control buttons on the front rectangle can adjust the size, length and height of this surface.
4. Finally, click PPT blank to exit.