The 3-D Pyramid Tool creates a simple three-dimensional pyramid shape. To use this tool, position the  mouse cursor where the left corner of your pyramid's base will be located. Press down and hold the left mouse button and drag the cursor to the location where you would like the opposite corner. When your pyramid reaches the desired size and shape, release the mouse button. Once you have defined the dimensions of your pyramid’s base, the 3-D Editor will appear allowing you to rotate and position the object before it becomes a permanent part of your picture.