Question

1. Find the volume of a sphere whose radius is
(i) 7cm
(ii) 0.63 m​

Answer 1

Answer:

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Answer 2

✯✯ QUESTION ✯✯

Find the volume of a sphere whose radius is

(i) 7cm

(ii) 0.63 m

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✰✰ ANSWER ✰✰

( i ) $⇝Radius = 7cm$

$\small{\boxed{\bold{\bold{\green{\sf{Volume\:of\:Sphere⟹\dfrac{4}{3}πr^{3}}}}}}}$

$<u>Putting</u><u>\</u><u>:</u><u>Values</u> : -$

$⇝\dfrac{4}{3}\times\dfrac{22}{7}×7×7×7$

$⇝\dfrac{4×22×7×7}{3}$

$⇝\cancel\dfrac{4312}{3}⟹{1437.3cm}^{3}(Approx.)$

( ii ) $⇝Radius = 0.63m$

$\small{\boxed{\bold{\bold{\red{\sf{Volume\:of\:Sphere⟹\dfrac{4}{3}πr^{3}}}}}}}$

$<u>P</u><u>u</u><u>t</u><u>t</u><u>i</u><u>n</u><u>g</u><u>\</u><u>:</u><u>V</u><u>a</u><u>l</u><u>u</u><u>e</u><u>s</u>$

$⇝\dfrac{4}{3}\times\dfrac{22}{7}\times\dfrac{063}{100}\times\dfrac{063}{100}\times\dfrac{063}{100}$

$⇝\dfrac{4×22×9×21×63}{100000}$

$⇝\dfrac{1047816}{1000000}⟹1.04(Approx.)$