1.

Q: An observer on the top of a mountain, 500 m above the sea level, observes the angles of depression of the two boats in his same place vision to be 45 ° and 30 ° respectively. Then the distance between the boats, if the boats are on the same side of the mountain, is

A. 366 m
B. 699 m
C. 456 m
D. 584 m
Answer» B. 699 m


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