Answer :

Given: surface area of sphere = 154 cm^{2}

And we know surface area of sphere is given by,

Surface area = 4πr^{2}

Substituting values in the above equation, we get

⇒

⇒

⇒ r^{2} = 12.25

⇒ r = √12.25

⇒ r = 3.5

If radius of sphere is 3.5 cm, then volume can be easily found as the formula of volume of sphere is given by,

Volume = 4πr^{3}/3

⇒ Volume =

⇒ Volume =

⇒ Volume = 179.67

Thus, volume of sphere is 179.67 cm^{3}.

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