A person walking along a straight road
observes that at two consecutive kilometre
stones, the angles of elevation of the top of a
hill in front of him are 30° and 60°. Find the
height of the hill.
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Answer:
let the km be x and x+1 and let the height of the hill be h
respectively take 30degree and 60 degree
tan30= P/B = 1/ Root 3 = h/x
tan60= P/B = root 3 = h/x+1
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