Question

Find the volume of a sphere whose radius is r/2 plz solve this tomorrow is my exam.

Answer 1

To Find :

• we need to find the volume of sphere.

ɢɪᴠᴇ :

• Radius of sphere = r/2

we know that,

• 《Volume of sphere = 4πr³/3》

sᴏ,

⟶ Volume of sphere = 4× π × r/2 × r/2 × r/2 × 1/3

⟶ 4πr³/8/3

⟶ 4πr³/24

⟶ πr³/6

Or,

• If we take π = 22/7

Then,

⟶ 4 × 22/7 × r/2 × r/2 × r/2 × 1/3

⟶ 88/7 × r³/8 × 1/3

⟶ 88r³/168

⟶ 11r³/21

Hence,

• Volume of sphere is 11r³/21

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