Q15 of 68 Page 15

In Fig.15.70, OACB is a quadrant of a circle with centre O and radius 3.5cm. If OD=2cm, find the area of the (i) quadrant OACB (ii) shaded region.

Given,


Area of quadrant OACB =




Area of shaded region = area of quadrant OACB – area of quadrant ODEF




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Find the area of the shaded region in Fig.15.72, if AC=24cm, BC=10cm and O is the centre of the circle.