Creating a polygon
You can create a polygon with the desired shape and size using the Polygon Tool on the Tool Palette.
Using the drag and drop method
- Select the Polygon Tool 
 on the  Tool Palette.
 - Specify the number of Sides in the Tool Options.
 - Place the mouse on the part of the Canvas where the center of the polygon is to be. Drag and drop the mouse to make a polygon of a desired size.
 
Using the Polygon dialog box
- Select the Polygon Tool 
 on the Tool Palette.
 - Click on the part of the Canvas where you want to insert a polygon.
 - In the Polygon dialog box, specify the length of Radius and the number of Sides. To modify the position of the center, specify Center X and Center Y.
 - Click Ok. A new polygon is created.