10th Class Mathematics Introduction to Trigonometry Question Bank Case Based (MCQs) - Introduction to Trigonometry

The measure of \[\angle C\] is:

A) \[30{}^\circ \]

B) \[45{}^\circ \]

C) \[60{}^\circ \]

D) None of these

Correct Answer: C

Solution :

Similarly, \[\tan C=\frac{AB}{BC}=\frac{9}{3\sqrt{3}}=\sqrt{3}\]

\[\Rightarrow \,\,\,\,\,\,\,\,\,\tan C=\tan 60{}^\circ \,\,\,\,\,\Rightarrow \,\,\,\,\,\angle C=60{}^\circ \] .(2)

So, option [c] is correct.