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Step-by-step explanation:
side of square = 2 + 2 = 4cm ( diameter lenght of circle is also length of square as they are parallel)
area of square = 4*4 = 16cm^2
area of circle = 2*22/7*2
= 88 / 7 cm ^2
shaded area = 16 - 88/7 = 24/7 cm^2
so probability of it hitting = shaded area / total area
= (24/7) / 16
= 3/14
percentage = 3/14*100
= approx 22.43 percentage
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