A cylinder has 2 flat circular faces and a curved surface. Imagine a tin with a label around the curved surface. Taking the label off the tin and flattening it out gives a rectangle. The length of ...

Total volume of the salt shaker ... 1.5^3 = 42.4~\text{cm}^3\) Total surface area of the salt shaker = surface area of cylinder + surface area of hemisphere. Surface area of cylinder (note ...