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From a point 20 m away from the foot of a tower, the angle of elevation of the top of the tower is 30°. The height of the tower is
5Q:
From a point 20 m away from the foot of a tower, the angle of elevation of the top of the tower is 30°. The height of the tower is
- 110 √ 3 mfalse
- 220 √ 3 mfalse
- 3$$ {10\over √3} m $$false
- 4$$ {20\over √3} m $$true
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