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Learn everything about cylinder with this free math topic guide, including step-by-step examples, free practice questions, and more! The shape of the bases Usually the bases are circles, so a familiar soup can would be technically called a 'right circular cylinder '. This is the most common kind, and if someone just says ' cylinder ' this is usually what they mean. The bases can however be almost any curved shape , but the most common alternative to a circle is an ellipse. A cylinder is a three-dimensional solid with two parallel circular bases and a curved surface. Learn how to calculate its volume and surface area with formulas and examples. The shape can be thought of as a circular prism. Both the surface and the solid shape created inside can be called a cylinder . The surface area and the volume of a cylinder have been known since ancient times. In differential geometry , a cylinder is defined more broadly as a ruled surface which is spanned by a one-parameter family of parallel ...
