"A circle of radius 5 cm is drawn and another circle of 3 cm radius is cut out of this circle.
Channel: Doubtnut
Date: 2020-04-05

"A circle of
 radius 5 cm is drawn and another circle of 3 cm radius is cut out of this
 circle. What is the radius of a circle which has the same area as the area of
 the bigger circle excluding the cut one?
(a) 2
 cm (b) 3 cm (c) 4 cm (d) 4.5 cm"