John walks 1 mile west. then he turns north and walks another 2 miles before he stops to rest. how far is john from his starting point when he stops to rest? round your answer to the nearest tenth.

You might think at first that he is 3 miles from his starting point, but if you think about it, that's not true. This forms a right triangle with one side of 2, the other side with 1, and the unknown distance as the hypotenuse. We can use Pythagorean's Theorem to solve this:



This cannot be simplified anymore, so the distance John travels is miles. You can put this into a calculator to get a value of 2.2 miles (rounding to the nearest tenth).