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?

`["Assume "pi=22/7]`

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#### Solution

Radius (*r*) of capsule = (3.5/2)mm = 1.75 mm

`"Volume of spherical capsule "=4/3pir^3`

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

= 22.458 mm^{3}

= 22.46 mm^{3} (approximately)

Therefore, the volume of the spherical capsule is 22.46 mm^{3}.

Concept: Volume of a Sphere

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