Question

Surface area of a sphere is 616 CM square find its radius

Answer 1

Answer:

AREA OF SPHERE = 4πr²

                         616=4*22/7*r²

                    616*7  = 4*22*r²

                      4312 = 88*r²

                 4312/88=r²

                         49 =r²

                          7  = r

therefore the radius is 7 cm

Step-by-step explanation: