Use the Pythagorean Theorem and the square root property to solve the following problem. Express your answer in simplified radical form. Then find a decimal approximation to the nearest tenth. A rectangular park is 9 miles long and 3 miles wide. How long is a pedestrian route that runs diagonally across the park? In simplified radical form, the pedestrian route is miles long. Rounded to the nearest tenth, the pedestrian route is miles long.