12. In Fig. 12.30, OACB is a quadrant of a circle with centre O and ra – InterviewSolution

1.	12. In Fig. 12.30, OACB is a quadrant of a circle with centre O and radius 3.5 cm. IfOD2cm,ind the area of the) quadrant OACB,(ii) shaded region.uc is inscribed in a quadrant OPBQ. If OA-20 cm, find the
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