17- The horizontal distance between two towers is 60 m. the angle of depression of the top of first tower when seen from the top of the second tower is 30°. If the height of the second tower is 150 m, find the height of the tower.
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If the height of the second tower is 90 m, then the height of the first tower is. From the figure, DE and AB are the first and second towers respectively. The height of tower 1 = 55.36 m.
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