The horizental distance between two towers is 60m. The angular elevation of the top of the taller tower as seen from the top of the shorter one is 30°. If the height of the taller tower is 150m, the height of the shorter one is
In triangle,
tan 30 = 150-h/60
1/√3 = 150-h/60
20√3 = 150 - h
h = 150- 20√3
h = 150 - 34.64
h = 115.36m (nearly equal to 116m)
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