Fig. 12.31Fig. 12.3214. AB and CD are respectively arcs oftwo concentr – InterviewSolution

1.	Fig. 12.31Fig. 12.3214. AB and CD are respectively arcs oftwo concentric circles ofradii 21 cm and 7 cm andcentre O (see Fig. 12.32). If LAOB 30°, find the area ofthe sh aded region.
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