Question

In fig. $15.104,$ find the area of the shaded region (use $\pi =3.14$)

Answer 1

REF.Image

Area (ABCD) = $14\times 14=196$

Area of shape = $4\times \frac{1}{2}\times \pi \times 2^2+4\times 4$

$=8\pi +16$

$\therefore$ Area remaining = $196-16-8\pi$

$=180-25.12$

$=154.88c{m}^2$