The area of shaded part in the figure, where ABCD is a square, region \( I \) is a semicircle on... VIDEO
The area of shaded part in the figure, where ABCD is a square, region \( I \) is a semicircle on \( C D \) as diameter, region II and III are quadrants of a circle with centres at \( A \) and \( B \) respectively, each having a radius \( 7 \mathrm{~cm} \) is
a. \( 42 \mathrm{~cm}^{2} \)
b. \( 28 \mathrm{~cm}^{2} \)
c. \( 48 \mathrm{~cm}^{2} \)
d. \( 54 \mathrm{~cm}^{2} \)
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