A new curved projection system for a small media room states the optimal viewing angle is 74° (m ZACB = 749) when you sit 10 feet from the center of the TV (length of CD = 10 ft). The depth of the curved screen is 2 feet
(length of DE = 2 ft). Find the length of line segment AB, in feet, that corresponds to the width of the television.
(Round your answer to the nearest foot)