Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse observed from the ships is 30° and 45° respectively. If the lighthouse is 100 m high, the distance between the two ships is:
A. 273m
B. 173m
C. 300m
D. 170m
Answer:A
Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse observed from the ships is 30° and 45° respectively. If the lighthouse is 100 m high, the distance between the two ships is:
A. 273m B. 173m C. 300m D. 170m