225 ft X A building that is 225 feet tall casts a shadow of various lengths as the day goes by. An angle of elevation 0 is formed by lines from the top and bottom of the building to the tip of the shadow, as seen in the figure above. de when z = 147. dr Find the rate of change of the angle of elevation 0'(147) radians per foot. Round to five decimal places. %3D

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