Question

AB and CD are respectively arcs of two concentric circles of radii 21 cm and 7 cm and centre O. If angle AOB=30°, find the area of the shaded region.

Answer 1

$\sf ↑↑\pink{Refer \: to \: Attachment.}↑↑$

Answer 2

$\huge\mathbb{↑↑SOLUTION↑↑}$

HOpe iT HELps uH!!