Use
            the Ellipse object tool to draw an ellipse defined by three vertices.
            The first vertex determines the centre of the ellipse. The second
            vertex determines the horizontal radius of the ellipse. The third
            vertex determines the vertical radius.
         
         To draw an ellipse:
         
         
            - In the Graphics menu, click Add.
            
- Select the Ellipse tool in the Object
               Tools window.
            
- Position the cursor at the centre of
               the ellipse and press to anchor the point on the image. Do not release
               the cursor.
            
- Drag the cursor horizontally to establish
               the width of the ellipse. You can continue to adjust the width as
               long as you press down on the cursor.
            
- Release the cursor to anchor the second
               vertex.
            
- Move the cursor along the vertical axis
               to position the third vertex. You can continue to adjust the height
               of the ellipse until you press down on the cursor. Press to anchor
               the third vertex.
               The ellipse is drawn
                  on the image.
                
To draw a circle with the Ellipse tool:
         
         
            - In the Graphics menu, click Add and select
               the Ellipse tool.
            
- Press P.
            
- Position the cursor at the centre of
               the circle and press to anchor the point on the image. Do not release
               the cursor.
            
- Drag the cursor horizontally to establish
               the radius of the circle. Notice that there are two vertices at
               the edge of the circle, as there are for an ellipse.
            
- Release the cursor and the P key to anchor the second and third
               vertices.
               The circle is drawn on
                  the image.