Question

Find the area of the shaded parts in the following figures, all dimensions being in cm

Answer 1

$hey \: mate \: here \: is \: ur \: answer \\ i)\pi {r}^{2} - 2\pi {r}^{2} \\ 22 \div 7 \times 3.5 \times 3.5 - 2 \times 22 \div 7 \times 3.5 \div 2 \times 3.5 \div 2 \\ 38.5 - 19.25 \\ 19.25 {cm}^{2} \\ ii) \: \pi {r}^{2} - \pi {r}^{2} \\ 22 \div 7 \times 14 \times 14 - 22 \div 7 \times 7 \times 7 \\ 616 - 154 \\ 462 {cm}^{2}$
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