Q. 44.5( 17 Votes )

In the figure 7.46, if O is the centre of the circle, PQ is a chord. POQ = 90°, area of shaded region is 114 cm2, find the radius of the circle. (π = 3.14)

Answer :

Area Of shaded region, AR = 114 sq.cm

Area of sector (O-PRQ),AS = one-fourth of area of circle

Area of Shaded Region, AR = AS – AT

r = 20 cm

Radius of the circle is 20 cm

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