A typical soup can design forms a geometric shape known as a cylinder. A cylinder is defined as a three-dimensional shape that has two circular ends, or bases. Other examples of cylinders are drinking straws, pipes and the cardboard tubes in paper towels.
Continue ReadingA cylinder is basically made up of two circles and a rectangle, so finding the areas of these three shapes and adding them together gives the surface area of the cylinder. The formula for the surface area is 2(pi)(r^2) + 2(pi)rh, where r is the radius of the circle and h is the height of the cylinder. The formula for the volume is (pi)(h)(r^2). Both of these calculations have been known since ancient times.
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