Question

Example 5. Find the volume of a sphere of
radius 21 cm in litres.​

Answer 1

Answer:

$volume \: of \: sphere = \frac{4}{3} {\pi}r^{3} \\ \frac{4}{3} \times \frac{22}{7} \times 21 \times 21 \times 21 \\ = 38808$

Answer 2

$\Large\blue{\sf{ɢɪᴠᴇɴ:}}$

• Radius of Sphere = 21cm

$\huge{\bold{ꜱᴏʟᴜᴛɪᴏɴ:}}$

$\boxed{\sf{Volume\;of\; Sphere = \frac{4}{3}{\pi}r³}}$

$→\;{\sf{\frac{4}{3}×\frac{22}{7}×(21)³}}$

$→\;{\sf{\frac{4×22}{3×7}×21×21×21}}$

$→\;{\sf{88×21×21}}$

$→\;{\bold{38808cm³}}$

• Volume of Sphere = 38.808 liters.

$\Large{✓}$

Hope It Helps You ✌️