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Calculate the area of the shaded part of each figure, given the side length of the square is 7 cm and dimensions are in cm.

Mathematics

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We need to find the area of the shaded part for each figure. All dimensions are in cm. The side length of the square in each figure is 7 cm.

a)

  1. Calculate the area of the square.

    The side length of the square is s=7s = 7 cm.
    Area of square =s2=(7 cm)2=49 cm2= s^2 = (7 \text{ cm})^2 = 49 \text{ cm}^2.

  2. Calculate the area of the unshaded quarter circle.

    The radius of the quarter circle is r=7r = 7 cm.
    Area of quarter circle $= \frac{1}{4} \pi r^2 = \frac{1}{4} \times \

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