The range of a projectile fired at an angle θ with the horizontal and with an initial velocity of v0 feet per second is r = 1 32 v02 sin 2θ where r is measured in feet. An athlete throws a javelin at 75 feet per second. At what angle must the athlete throw the javelin so that the javelin travels 110 feet? (Assume θ < 45°. Round your answer to two decimal places.)