Question

find the volume of a sphere, if it's surface area is 154sq.cm

Answer 1

Answer:

V=179.7

Step-by-step explanation:

Using the formulas,A=4πr2

V=4

3πr3

Solving forV

V=A3/2

6π=1543/2

6·π≈179.70282

Answer 2

Answer:

Surface area of sphere = 4 pie r²

154 cm² = 4×22/7 × r²

154 cm²×7/4×22 = r²

5929 cm² = r²

77 cm = r

Volume of sphere = 4/3×pie×r³

= 4/3×22/7×(77 cm)³

= 88/21×456533 cm³

= 1913090.67 cm³