3D coordinate system

A 3D coordinate system is like an invisible grid that helps us locate any point in three-dimensional space. It uses three numbers: x, y, and z. The x-axis runs left-right, the y-axis runs front-back, and the z-axis runs up-down. By combining these three values, we can specify the exact position of a point, object, or location in a 3D environment—much like giving an address in space. This system is fundamental in fields like graphics, engineering, and navigation, enabling precise positioning and movement within three dimensions.