Question

find the area of the shaded region ​

Answer 1

Step-by-step explanation:

7×9=63

1/2 × 22/7 × 3.5×3.5= 19.25

63+19.25= 82.25 units

Answer 2

Answer:

We can find area of shaded region by finding area of rectangle and semicircle separately as:-

$Area \: of \: rectangle \\= l \times b \\ = 9 \times 7 \\=63 {m}^{2}$

Now

radius of semicircle

= 12.5 m - 9 m

=3.5 m

Now

Area of semicircle=

$\frac{1}{2} \pi {r}^{2} \\ = \frac{1}{2} \times \frac{22}{7} \times 3.5 \times 3.5 \\ = 19.25 {m}^{2}$

so area of shaded part will be

area of rectangular region + area of semicircular region

=63+19.25

=82 .25 m ^ 2