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1. |
From the top of a platform 5 m high, the angle of elevation of a tower was 30 deg. If the platform was positioned 40√3 m away from the tower, how tall was the tower? |
A. | 40 m |
B. | 20√3 m |
C. | 30√3 m |
D. | 45 m |
Answer» E. | |