Question

can you solved please
solve ques. 6

Answer 1

Given surface area = 154 cm^2.

We know that surface area of the sphere = 4πr^2

⇒ 4πr^2 = 154

⇒ 4(22/7) * r^2 = 154

⇒ 88r^2 = 1078

⇒ r^2 = 12.25

⇒ r = √12.25

⇒ r = 3.5 cm.

We know that volume of sphere = (4/3) πr^3

                                                      = (4/3)(22/7) * (3.5)^3

                                                      = 3773/21

                                                      = 179.67 cm^3.

Therefore, volume of the sphere = 179.67 cm^3.

Hope it helps!