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Question
A capsule of medicine is in the shape of a sphere of diameter 3.5 mm. How much medicine (in mm3) is needed to fill this capsule?
`["Assume "pi=22/7]`
Solution
Radius (r) of capsule = `(3.5/2) mm` = 1.75 mm
Volume of the spherical capsule = `4/3pir^3`
= `[4/3xx22/7xx(1.75)^3]mm^3`
= 22.458 mm3
= 22.46 mm3 (approximately)
Therefore, the volume of the spherical capsule is 22.46 mm3.
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