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

  • question_answer
    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.

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