Question

find the volume of a sphere whose surface area is 154cm square

Answer 1

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Answer 2

Hey !!!

Surface area of sphere = 4πr²

4πr² =154

4 × 22×r²/7 = 154

r² = 154×7/22 × 4

=> r² = 49/4

r =√ 49/4

r = 7/2 =3.5

Now ,Volume of sphere = 4/3 πr³

4×22×r³/21

=> 4×22×7×7×7 /21 ×8
=> 11×7×7/3 =179.666666 cm³ Answer ..

hope it helps you !!!

#Rajukumar111