The top of a 200-foot vertical tower is to be anchored by cables that make an angle of 30_ with the ground. How long must the cables be? How far from the base of the tower should anchors be placed? The front door to the student union is 20 feet above the ground, and it is reached by a flight of steps. The school wants to build a wheelchair ramp, with an incline of 15 degrees, from the ground to the door. How much horizontal distance is needed for the ramp?
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