plane figures

Plane figures are flat shapes that lie on a straight surface, like a piece of paper or a tabletop. They are two-dimensional, meaning they have length and width but no height. Examples include circles, squares, triangles, rectangles, and polygons. These figures are defined by their boundaries, called edges or sides, and the points where edges meet are called vertices or corners. Understanding plane figures helps in analyzing shapes, calculating areas and perimeters, and applying geometric principles in real-world contexts such as design, construction, and art.