Missing+or+Excess+Area

Author: Guillermo Bautista
 * Title: Missing or Excess Area**

Click the **Play** button at the bottom-left of the applet to view the animation.

media type="custom" key="9876513"


 * 1) Click the **Pause** button and refresh your browser.
 * 2) What is the area of the square made up of the two triangles and two trapezoids?
 * 3) Check the **Assemble Manually** check box to show the slider.
 * 4) Set the slider [[image:http://latex.codecogs.com/gif.latex?%5Calpha link="@http://www.codecogs.com/eqnedit.php?latex=alpha"]] and [[image:http://latex.codecogs.com/gif.latex?%5Cbeta link="@http://www.codecogs.com/eqnedit.php?latex=beta"]] to 90, and then //a// to 0 and //e// to 8. What is the area of the rectangle?
 * 5) Explain why there is an excess area.