Thread: Area of a Trapazoid...

Please look at the attached. The problem number I have to do is number 20. I believe the answer is 222. I

Here is my math: 15/2 times 20 = 150

12/2 times 12 = 72

150 + 72 = 222

Yes?

Hello, zachcumer!

Code:

    D *  *  *  *  *  *  * C
      *              *   *
      *           *       *
   12 *        * 20        * 15
      *     *               *
      *  *                   *
    A *   *   *   *   *   *   * B

Area of a trapezoid: .

We know that:
. . But what are ?


In right triangle
. .

In right triangle
. .


Therefore: .