A capsule (medicine) is shaped like a cylinder with two hemispheres, one stuck on each end, all of the same radius r. Its total surface area equals: (CSA = curved surface area, TSA = total surface area)

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Accepted Answer

2*π*r*h + 4*π*r^2. Cylinder CSA = 2*π*r*h; the two flat ends are covered by two hemispheres whose curved areas add 2*(2*π*r^2) = 4*π*r^2.

A capsule (medicine) is shaped like a cylinder with two hemispheres, one stuck on each end, all of the same radius r. Its total surface area equals: (CSA = curved surface area, TSA = total surface area)

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