Geometry is a branch of mathematics that deals with the properties and relationships of points, lines, surfaces, and solids. It is fundamental in understanding shapes and their dimensions, and it has applications in various fields such as architecture, engineering, and art. The study of geometry can be divided into several subfields, including Euclidean Geometry, which focuses on flat surfaces, and Non-Euclidean Geometry, which explores curved spaces. Concepts like angles, triangles, and circles are essential in this discipline, helping us to visualize and solve real-world problems.