Trigonometryhard · Past Paper
A man on the deck of a ship 10 m above water level observes elevation of a hill top as 60° and depression of base as 30°. Find hill height.
A40 m
B30 m
C20 m
D10 m
✓ Correct Answer: A — 40 m
Distance to hill = 10/tan 30 = 10√3. Height above deck = 10√3 * tan 60 = 30. Total hill = 30 + 10 = 40 m.
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