The area of the region bounded by the dashed line shown in the figure below in cm2 is _____.
Use π = 3.14.
    Correct answer is between '7.83,7.87'. Can you explain this answer?

    IIT JAM Question

    Koushal Sharma answered 3 weeks ago
    Here required area is from subtracting area of inner semicircle from outer semicircle..
    here outer radius=R=3
    inner=r=2
    Area of semicircle=πr^2/2
    π/2(R^2-πr^2)
    π/2(9-4)
    π*5/2
    3.14*2.5
    7.85

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