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You have found Box #4

All questions pertain to the drawing at the right. 1.Find the area of the rectangle at the right when x = 4. 2. For what value of x will the rectangle at the right be a square?     3. If the area of the rectangle is 252 square units, find x.

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Find the sum of your answers. Multiply your answer by the sum of 10 cubed and 5 squared.
Place this answer in the address below (following the letter "A") and type the address into your browser to find the next hidden box.

http://mathbits.com/caching/A__________.html