What is the approximate area of the shaded sector in the circle shown below?

a. 20.36 cm²
b. 5.09 cm²
c. 2.83 cm²
d. 5.65 cm²

B.

Step-by-step explanation:

From the given figure it can be seen that half of the circle (sector with is the semicircle ) is shaded, therefore, the area of the shaded region is given by :-

Also, the radius of the circle =

Now, the area of the shaded sector in the circle is given by :-

Hence, the approximate area of the shaded sector in the circle=