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How many different rectangles can you draw with an area (number of “tiles”) of ? What is the perimeter (number of “toothpicks”) of each one? Show your work.  

Here, an example has already been constructed. This is a by rectangle with a unit perimeter.

Use the eTool below to click and drag the tiles to form rectangles with differing dimensions. Remember, a rectangle has two pairs of parallel sides and four right angles.
Click on the link at right for the full eTool version:
   1-67 HW eTool