In advanced mathematics (pitkä matematiikka), what is the maximum volume of an open-top cylindrical can constructed with fixed surface area square units?

Answer and explanation

Correct answer: C.

  1. Step 1: For an open-top cylinder, surface area is . Volume is . Find the critical point: . The maximum volume is . **Answer: . Why not the others:** omits dividing by 2, and evaluates at an incorrect radius.

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