A capsule of medicine is in the shape of a sphere of diameter 3.5 mm. How much medicine `("in " mm^3)` is needed to fill this capsule?

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#### Solution

Given that,

Diameter of capsule =3.5mm

Radius =`3.5/2 =1.75mm`

Volume of spherical capsule =`4/3πr^3`

=`4/3xx22/7xx(1.75)^3mm^3`

=`22.458mm^3`

∴ `22.46mm^3`of medicine is required.

Concept: Volume of a Sphere

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