Question

find the volume of a sphere whose surface area is 154
​

Answer 1

Solution :-

surface area = 4πr2

154 r2

154 ×7 / 22 ×4

49/4 = 7/2cm

volume = 4/3πr3

539 /3 = 179.66 (approx)

hope it helps you !!!

Answer 2

Answer:

$\star\large\mathcal{\underline{\underline{PLEASE \: }}}\large\mathcal\red{\underline{\underline{F}}}\large\mathcal\green{\underline{\underline{OLL}}}\large\mathcal\pink{\underline{\underline{OW \: }}}\large\mathcal\blue{\underline{\underline{ME}}}\star$

Step-by-step explanation:

$Given , TSA \: of \: Sphere = 154cm²$

$To Find : Volume \: of \: Sphere$

$Now , we \: know \: that :$

$TSA \: of \: sphere = 4πr²$

$=> 4πr² = 154$

$= 4× \frac{22}{7} ×r²= 154$

$= r² = \frac{154×7}{4×22}$

$= r² = \frac{49}{7}$

$= r = \frac{7}{2}$

$Volume \: of \: sphere = \frac{4}{3} πr³$

$=> \frac{4}{3} × \frac{22}{7} × \frac{7}{2} × \frac{7}{2} × \frac{7}{2} cm³$

$= \frac{539}{3}$

$= 179.66cm³$

$therefore , volume \: \\ of \: sphere \: is \: 179.66cm³.$

$please \: like \: my \: answer \\ \&\\ mark \: me \: brainliest \: please \: :)))$

$\star\large\mathcal{\underline{\underline{PLEASE \: }}}\large\mathcal\red{\underline{\underline{F}}}\large\mathcal\green{\underline{\underline{OLL}}}\large\mathcal\pink{\underline{\underline{OW \: }}}\large\mathcal\blue{\underline{\underline{ME}}}\star$

$\star \: i \: hope \: you \: will \: understand \: me\star$