Mr. Alice just purchased a brand new wireless surround sound system for his living room. This is the latest HD sound technology and comes with a sound bar, and 4 other speakers. Based on directions that came with the system, the speakers should be placed as closely as possible to the following diagram. Doing so will maximize the quality of the sound system. The distance from the TV to the back of the couch is 9ft. How far away from the TV does Mr. Alice need to place the rest of the speakers? (Your Answer should be in feet and whole inches)