Question

Find the surface area of a sphere of radius 7 cm.​

Answer 1

Answer616cm∧2

Step-by-step explanation:

surface area of a sphere= 4 * 22/7 * radius* radius

                                         = 4*22/7*7cm*7cm

                                         = 4*22*7cm∧2

                                         =616cm∧2

Answer 2

Answer:

Radius of the sphere, r = 7 cm

∴ Surface area of the sphere, S = 4πr²=4×22/7×(7)² = 616 cm².

Thus, the surface area of sphere is 616 cm².