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1. |
The shadow of a tower on ground level is increased by 30 m, when the angle of depression by the sun changes from 60 deg to 30 deg. The height of the tower is_x005F_x000D_ |
A. | 12√3 m |
B. | 17√3 m |
C. | 16√3 m |
D. | 15√3 m |
Answer» E. | |