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  • 2021 April(D05) Math Question 30

    Perimeter, Area, Volume

    - Triangles, Squares, Rectangles, Circles

    Area of Rectangle(square)
    Choice J

    Area of bigger rectangle = $(5+1+1)\times (5+1)=42$

    Area of smaller rectangle (square) = $5\times 5=25$

    ⇒ Area of she shaded region = $42-25=17$

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