Rita has drawn a circle with an area of 154 cm 2and a sector of 120 o has removed from it.
If so, what will be the radius of the circle ?
a. 6 cm
b.8cm
c.7.5 cm
d. 7 cm

Area of the circle =154 cm2Let the radius of the circle be r. πr2=154227×r2=154r2=7 cm

Hence, the correct option is d.

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