Asupport beam to be placed at a 28° angle of elevation so that the top meets a vertical beam 1.6 meters above the horizontal floor. vertical beam meets the floor at a 90° angle. law of sin: sin(a)/a=sin(b)/b=sin(c)/c approximately how far the vertical beam should the lower end of the support be placed along the horizontal floor a)3.0 meters b)3.4 meters c)3.9 meters d)4.4 meters