Multiple choice If the surface area of the sphere is 616 sq. cm , then its radius is : 7 14 12 None of these Reveal answer Fill a bubble to check yourself A Correct answer Explanation Surface area of sphere = 4πr². Given 4πr² = 616. Using π = 22/7: 4 × (22/7) × r² = 616, so r² = 616 × 7/(4 × 22) = 49. Therefore r = 7 cm.