Question

area of the shaded region​

Answer 1

Answer:

Area of shaded region = Area of the rectangle - Area of the circle

So, l × b - πr²

= 20 × 10 - 22/7 × 3 × 3

= 200 - 28.285

= 171.7 cm²

Hope it Helps ^_^

Answer 2

Given:-

$\longrightarrow$ Length of rectangle=20cm

$\longrightarrow$ Breadth of rectangle=10cm

$\longrightarrow$ Radius of circle=3cm

To Find:-

$\longrightarrow$ Area of shaded region

Solution:-

$\bf\implies Area\longrightarrow Length×Breadth - πr²$

$\bf\implies Area \longrightarrow 20×10-\frac{22}{7}×(3)²$

$\bf\implies Area \longrightarrow 200-\frac{22}{7}×9$

$\bf\implies Area \longrightarrow 200-28.28$

$\bf\implies Area \longrightarrow 171.72 cm²$