A) \[45{}^\circ \]
B) \[30{}^\circ \]
C) \[75{}^\circ \]
D) \[25{}^\circ \]
Correct Answer: B
Solution :
[b] Let \[AB=x\] |
\[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,AC=2x.\] |
\[\therefore \,\,\,\,\,\,\,\,\,\sin C=\frac{AB}{AC}\] |
\[=\frac{x}{2x}=\frac{1}{2}\] |
\[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,C=30{}^\circ \] |
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