A certain drawbridge divides into two equal sections where the sections rotate upward to an angle of 35 degrees. This draw bridge is 150 ft long when stretched across a river. The water level is 15 ft below the closed bridge.

a) When the draw bridge is raised to its maximum height, find the distance between the end of one of the sections and the water level.

b) When the bridge sections are fully raised approximate how many feet is the gap between the two sections.