You can do this exercise as a thought experiment or follow
Last updated: 7/16/2022
You can do this exercise as a thought experiment or follow along with a real piece of paper and a ruler. You're trying to determine the diagonal length of a piece of paper by two methods. One is to measure the diagonal with the ruler. Second method is to measure the width and length, then calculate the diagonal by using the Pythagorean theorem. Using the first method, you measure the diagonal as 14". Using the second method, you measure 8.5" by 11". squaring each and adding, you get 193.25 sq in, then you take the square root to determine the calculated diagonal length. The calculator shows the number, 13.901439. Should you write down all of these numbers in your answer? Why or why not? What happens if, instead of using 193.25, you round off in the middle of your calculation to 190 and take the square root?