If the surface area of sphere is 616 cm^2, then its radius is
If the surface area of sphere is 616 cm2, then its radius is
A) 3.5 cm
B) 7 cm
C) 14 cm
D) 21 cm
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If the surface area of sphere is 616 cm2, then its radius is
A) 3.5 cm
B) 7 cm
C) 14 cm
D) 21 cm