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Assuming you mean 154 cm2

The volume is 179.7 cm3

Surface area of a sphere = 4 pi r2

Volume of a sphere = 4/3 pi r3

SA = 154 cm2

154 = 4 pi r2

r2 = 154/4/pi

r = 3.5

V = 4/3 x pi x (3.5)3

= 179.7 cm3

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Q: Find the volume of a sphere whose surface area is 154cm?
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