The surface area of the geometric figure obtained by rotating the rectangle with the side length of 2cm and 4cm around one side is?

Rotating around 2cm, s = 2 * π * 2 ＾ 2 + 2 * π * 2 * 4 = 24 π cm ^ 2
Rotating around 4cm, s = 2 * π * 4 ＾ 2 + 2 * π * 4 * 2 = 48 π cm ^ 2

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