A cylinder has circular bases and height, so volume is πr²h and curved surface area is 2πrh. The other formulae belong to a sphere and a rhombus. Since this is a multi-answer question, check each option separately instead of looking for only one answer. A statement is correct only when both the formula and the unit idea match the measurement being discussed. The correct choices are Curved surface area = 2πrh, Volume = πr²h.