Question
The figure is not drawn to scale. It is made up of 2 semicircles, Z and A, overlapping each other. The radius of semicircle Z is 7 m while the radius of semicircle A is 21 m. 57 of semicircle Z is shaded. What fraction of the whole figure is not shaded? Express your answer in the simplest form. (Take π = 227)
3 m

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The figure is not drawn to scale. It is made up of 2 semicircles, Z and A, overlapping each other. The radius of semicircle Z is 7 m while the radius of semicircle A is 21 m. 57 of semicircle Z is shaded. What fraction of the whole figure is not shaded? Express your answer in the simplest form. (Take π = 227)