# A capsule of medicine is in the shape of a sphere of diameter 3.5 mm. How much medicine (in mm3) is needed to full this capsule?

Volume of a sphere = (4/3)πr3

Given, capsule of medicine is in the shape of a sphere of diameter 3.5 mm.

Radius = 3.5/2 = 1.75 mm

Volume of medicine filled inside = (4/3) × π × 1.753 = 22.458 mm3

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