Question

FIND THE AREA OF THE SHADED PORTION IN THE figure:-​

Answer 1

$\sf \Large Solution!!$

$\sf Area_{(big\:circle)}=\pi r^{2}$

$\sf Area_{(big\:circle)}=\dfrac{22}{7}\times (28\:cm)^{2}$

$\sf Area_{(big\:circle)}=2464\:cm^{2}$

$\sf Diameter_{(small\:circle)}=28\:cm$

$\sf Radius_{(small\:circle)}=14\:cm$

$\sf Area_{(small\:circle)}=\pi r^{2}$

$\sf Area_{(small\:circle)}=\dfrac{22}{7}\times (14\:cm)^{2}$

$\sf Area_{(small\:circle)}=616\:cm^{2}$

$\sf Area_{(shaded\:portion)}=Area_{(big\:circle)}-Area_{(small\:circle)}$

$\sf Area_{(shaded\:portion)}=2464\:cm^{2}-616\:cm^{2}$

$\sf Area_{(shaded\:portion)}=1848\:cm^{2}$