Sphere

A sphere is a perfectly round, three-dimensional object where every point on its surface is equally distant from its center, like a globe. Imagine the shape of a basketball or a globe: if you drew a line from the center to any point on the surface, the length of that line (radius) stays the same everywhere. Spheres have smooth, curved surfaces without edges or corners. They are common in nature and physics, representing idealized forms like planets, bubbles, and atoms' electron clouds. Their symmetry and uniformity make them important in geometry, science, and engineering.