Question

find the volume of a sphere whose radius is 7 cm​

Answer 1

Solution -

We have,

• Radius of a sphere = 7cm

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We need to find the volume of sphere.

Using formula,

$\large{\bf{\longmapsto{\boxed{\pink{Volume = \dfrac{4}{3} \pi r^3}}}}}$

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Putting values

$\tt:\implies\: \: \: \: \: \: \: \: {Volume = \dfrac{4}{3} \times \dfrac{22}{7} \times 7 \times 7 \times 7}$

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$\tt:\implies\: \: \: \: \: \: \: \: {Volume = \dfrac{4}{3} \times 22 \times 7 \times 7}$

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$\tt:\implies\: \: \: \: \: \: \: \: {Volume = \dfrac{88}{3} \times 49}$

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$\tt:\implies\: \: \: \: \: \: \: \: {Volume = \dfrac{4312}{3}}$

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$\frak:\implies\: \: \: \: \: \: \: \: {\purple{Volume = 1,437.33\: cm^3}}$

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★ $\small\underline{\sf{Hence,\: volume\: of\: the\: sphere\: is\: 1,437.33cm^3}}$

Answer 2

$\huge \frak{Solution}$

Concept-

• In this query, we will use the formula for volume of a sphere. Than calculate and find the volume of the sphere.

Calculation-

• $\large \bf{Radius = 7cm} \} \: given$

Formula used-

• $\large{ \boxed{ \mathtt{ \green{ \dfrac{4}{3} \pi {r}^{3} }}}}$

Putting value-

• $\bf \blue {Volume = \dfrac{4}{3} \times \dfrac{22}{ \cancel{7}} \times \cancel{ 7} \times 7 \times 7 }$

• $\bf \blue{Volume = \dfrac{4}{3} \times 22 \times 49 }$

• $\bf \blue {Volume = \dfrac{88}{3} \times 49}$

• $\bf \blue{Volume = \dfrac{4312}{3} }$

• $: \implies \: \: \: \bf \blue {Volume = 1,437.33^3}$

Final answer-

$\implies 1,437 .33 ^{3}$

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