Question

Find the volume of a sphere whose

surface area is 154 cm2

​

Answer 1

Answer:

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Step-by-step explanation:

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

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

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

$TSA \: of \: sphere = 4πr²$

$=> 4πr² = 154$

$= 4× \frac{22}{7} ×r²= 154$

$= r² = \frac{154×7}{4×22}$

$= r² = \frac{49}{7}$

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

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

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

$= \frac{539}{3}$

$= 179.66cm³$

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

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

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