Subject

    Bank Exam

    Topic

    Premier Bank Ltd. (Trainee Junior Officer) 2013

    A figure consists of a square of side z meter with semicircle drawn on the outside of the square. The area (in m2) of the figure so formed will be

    ক)
    Z2
    খ)
    z2+2πz2
    গ)
    z2+πz2/8
    ঘ)
    4πz2

    Explanation

    Area of the square is z2 And, the radius of the circle drawn on the outside of the square = z/2 Now, the area of the circle is = π(z/2)2 = πz2/4 The are of the semi circle is = 1/2 * πz2/4 = πz2/8 Thus, the area of the entire figure is = z2+πz2/8

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