Question

Find the volume of a sphere whose radius r= 7cm ( use ∏= 22/7) 1​

Answer 1

Answer:

Volume =4/3πr³

=4/3×22/7×7×7×7

=1437.4cm³

Answer 2

Given:

• Radius = 7 cm

To find:

• Volume of sphere = ?

Solution:

$\bf{volume \: of \: a \: sphere = \dfrac{4}{3} \times \pi {r}^{2} }$

$\sf{ \rightarrow volume = \dfrac{4}{3} \times \dfrac{22}{7} \times {7}^{2} }$

$\rightarrow \sf{ volume = \dfrac{4}{3} \times \dfrac{22}{7} \times 7 \times 7}$

$\rightarrow \sf{volume = \dfrac{4}{3} \times 22 \times 7 }$

$\rightarrow \sf{volume = \dfrac{4 \times 22 \times 7}{3} }$

$\therefore \boxed{ \bf{volume = 205.33 \: cm {}^{3} }}$

Know more:

1. Volume of any substance is the quantity of matter present in it.
2. Volume of hemisphere Is half of the volume of sphere.
3. Volume of cone is One third the volume of cylinder.