10th Class Mathematics Circles Question Bank Circles

  • question_answer Direction: OA and OB are radii and PA and PB are tangents of the circle, as shown in the given figure. If\[\angle \text{APO}=\text{18}{}^\circ \], find \[\angle \text{AOB}\].

    A)  \[\text{24}{}^\circ \]                     

    B)         \[\text{144}{}^\circ \]

    C)  \[\text{1}0\text{8}{}^\circ \]                     

    D)         \[~\text{175}{}^\circ \]

    Correct Answer: B

    Solution :

     \[\text{9775}={{\text{5}}^{\text{2}}}\times \text{17}\times \text{23}\] \[\text{1173}0=\text{2}\times \text{3}\times \text{5}\times \text{17}\times \text{23}\]

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