A) 60 m
B) 75 m
C) 30 m
D) 45 m
Correct Answer: A
Solution :
[a] Let the height of the tower is h m From figure, In\[\Delta BMQ,\]\[\tan 30{}^\circ =\frac{90-h}{x}\] \[\Rightarrow \] \[\frac{1}{\sqrt{3}=\frac{90-h}{x}}\]
(i) ![]() |
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