How to: Draw a polygon in Paint.
Solution:
Click the polygon tool, click and drag to each corner, and double-click at the last corner.
NOTE: This solution assumes that Paint is opened.
1) Click the polygon tool in the tool box.
Polygon tool
2) Click a color for the polygon outline in the color palette.
3) (Optional) Right-click a color for a solid-color polygon.
4) To draw the polygon:
a) Click and drag the mouse pointer.
b) Click the mouse at each corner.
c) Double-click at the last corner.
NOTE: To use only 45- and 90-degree angles, press and hold down SHIFT while dragging the mouse pointer.