1.

Two boats approach a light house in mid sea from opposite directions. The angles of elevation of the top of the light house fromthe two boats are 30° and 45° respectively. If the distance between the two boats is 100 m, the height of the light house is :

A. 36.6 m
B. 73.2 m
C. 68.3 m
D. 136.6 m
Answer» B. 73.2 m


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