4. When Ted earned his driver's license, he wanted his first solo drive to be to a friend's house. Previously, Ted had always biked to his friend's house and was able to cut though the yards an a park in order to bike
there in a straight line. In his car, however, Ted had no choice but to follow the streets. As a result, he
traveled 6 miles east, 6 miles south, and 2 more miles east. How much shorter, in miles, is Ted's bike route
than his car route?