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1. |
The angle of elevation of the top of a pillar from the foot and the top of a building 20 m high, are 60 and 30 respectively. The height of the pillar is |
A. | 10 m |
B. | 10 |
C. | <span style=" text-decoration: overline;">3</span> |
D. | 60 m |
E. | 30 m |
Answer» E. 30 m | |