Question

If ABCD is a rectangle of dimensions of 30m, 20m, with sectors each of radius 7m. Then find the area of shaded portion ​

Answer 1

Answer:

446 m square

Step-by-step explanation:

$l = 30m \\ b = 20m \\ r = 7m \\ area \: of \: shaded \: region = area \: of \: rectangle \: - area \: of \: 4 \: sectors \\ = l \times b - 4 \times \frac{1}{4} \pi {r}^{2} \\ = 30 \times 20 - \frac{22}{7} \times 7 \times 7 \\ = 600 - 154 \\ = 446 {m}^{2}$