You have just built a rectangular frame out of 2 by 4's and you now want to verify that it is indeed a rectangle.

1. What are the characteristics of a rectangle?









2. What are some different methods that you can use to verify that your rectangular frame is indeed rectangular?









3. What tools will you need for each method?









4. Of your answers listed above, which method is the most accurate and why?









5. How do you measure accuracy?