CinderellaThe software for all this is available from Cinderella. |
Java-based images
to use now on this page. (Return to main Cinderella page) |
| Areas of trapeziums What is the connection between the lengths shown and the area? Move point C or D to the left or right so that the height remains the same. What happens to the area? What is the "formula" for the area of a trapezium? |