Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-33

  • question_answer
    The area of sector of a circle of a radius 5 cm formed by an arc of length 3.5 cm is

    A)  \[8.5\,\,c{{m}^{2}}\]

    B)  \[8.75\,\,c{{m}^{2}}\]

    C)  \[7.75\,\,c{{m}^{2}}\]

    D)  \[7.50\,\,c{{m}^{2}}\]

    Correct Answer: B

    Solution :

    \[\therefore \] r = 5 cm and l = 3.5 cm \[\therefore \]\[A=\frac{1}{2}lr=\frac{1}{2}\times 3.5\times 5=8.75\,\,c{{m}^{2}}\]


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