A) \[{{45}^{o}}\]
B) \[{{30}^{o}}\]
C) \[{{60}^{o}}\]
D) \[{{90}^{o}}\]
Correct Answer: A
Solution :
Let the height of the roof be\[15\,\,m\]. In\[\Delta \,ABC\], \[\tan \theta =\frac{BC}{AB}\] \[=\frac{15}{15}=1\] \[\Rightarrow \] \[\theta ={{45}^{o}}\]You need to login to perform this action.
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