4th Class Mental Ability Measurement Length, Weight and Capacity Question Bank Measurement

  • question_answer
    In the figure given below, area of circle including square is \[\text{39 c}{{\text{m}}^{2}}\]. Find the area of shaded portion.

    A)  \[\text{29 c}{{\text{m}}^{2}}\]              

    B)         \[\text{19 c}{{\text{m}}^{2}}\]

    C)  \[\text{16 c}{{\text{m}}^{2}}\]               

    D)         \[\text{14 c}{{\text{m}}^{2}}\]

    E) None of these

    Correct Answer: D

    Solution :

    Explanation: Option (d) is correct. Here, side of square = 5 cm Therefore, the area of square = \[\text{side}\times \text{side}\] \[=(5\times 5)\text{ c}{{\text{m}}^{2}}=25\text{ c}{{\text{m}}^{2}}\] Hence, the area of shaded portion = area of circle \[-\] area of square \[=(39-25)\text{ c}{{\text{m}}^{2}}=14\text{ c}{{\text{m}}^{2}}\]


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