Question

Find the area of shaded regions from the figures given below:​

Answer 1

Answer:

$from \: triangle \: adc \\ {ac}^{2} = {ad}^{2} + {cd}^{2} \\ ac = \sqrt{ {6}^{2} + {8}^{2} } \\ ac = 10 \\ r = \frac{10}{2} \\ r = 5 \\ area \: ofshaded \: region = \pi \: {r}^{2} - l \times b \\ = \frac{22}{7} \times {5}^{2} - 8 \times 6 \\ = 3771.42 \: {cm}^{2}$