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UPPSC Prelims 2022CSATQ. 82 of 217
Q. 821 markMedium
UPPSC Prelims 2022·CSAT
If the radius of a sphere is increased by 2 cm, its surface area is increased by 352 cm². (Take π = 22⁄7.) What is the radius of the sphere?
(a)6 cm
(b)4 cm
(c)7 cm
(d)8 cm