OK, for this problem we're going to use our arc length formula. So S equal R Theta where Theta has to be in radiance. So S equals the radius. We don't know, but we do know the diameter of 14, so the radius has got to be 14 / 2. The angle measures 55°, but for S equal R Theta, the angle had to be in radiance. So we're going to convert degrees to radians by multiplying by π / 180. So 55° * π / 180° simplifies to eleven π / 36. If we multiply that by the seven and read the directions of round to the nearest 10th, we're going to get 6.7 inches.