cylinder

A cylinder is a three-dimensional shape with two identical circular flat surfaces called bases, positioned parallel to each other. These bases are connected by a smooth, curved surface. Imagine a soda can or a pipe; their shape is a perfect example of a cylinder. The key features include the height (distance between bases), the radius of the bases, and the curved surface that wraps around. Cylinders are common in both everyday objects and engineering, providing structural support and containment. They are important in geometry, manufacturing, and design due to their symmetry and stability.