Question

1. Find the area of the shaded portion in the following figures.
A ​

Answer 1

Step-by-step explanation:

area of square =

$s \times s = 7 \times 7 \\ 49$

area of semicircle =

$\frac{1}{2} \times \pi \: r {}^{2} \\ \\ \frac{1}{2} \times \frac{22}{7} \times \frac{7}{2} \times \frac{7}{2} = \frac{77}{4}$

area of seconds semicircle =

$2 \times \frac{77}{4 } \\ = \frac{77}{2}$

area of shaded portion=

$49 + \frac{77}{2} = \\ \frac{165}{2 } = 82.5$

ans= 82.5