10th Class Mathematics Circles Question Bank Circles

  • question_answer If the four sides of a quadrilateral ABCD are tangential to a circle, which of the following is true?

    A)  \[\text{AC}+\text{AD}=\text{BD}+\text{CD}\]

    B)  \[\text{AB}+\text{CD}=\text{BC}+\text{AD}\]

    C)  \[\text{AB}+\text{CD}=\text{AC}+\text{BD}\]

    D)  \[~\text{AC}+\text{AD}=\text{BC}+\text{AB}\]

    Correct Answer: B

    Solution :

     Given sides of a quadrilateral ABCD are tangential to a circle. \[\therefore \] \[\text{7}\times \text{13}+\text{13}\]


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