How it works ?
- Before you begin:
- Feel free to move this quadrilateral’s vertices (corners) wherever you’d like.
- You can control the size of the red exterior angle by using the red slider.
- You can control the size of the blue exterior angle by using the blue slider.
- This applet works best if this quadrilateral is kept convex.
- If you don’t remember what this means, click here for a refresher.
- Interact with the applet for a minute or two.
- Then answer the question that follows.