Geometry is concerned with the properties of space and of objects in space.
Geometry is a mathematical system that is usually concerned with points, lines, surfaces, and solids. Different sets of assumptions give rise to different geometries. Geometry deals with sets of points in a plane or in space. In its most elementary form geometry is concerned with such metrical problems as determining the areas and diameters of two-dimensional figures and the surface areas and volumes of solids. The study of plane curves, angles, polygons, and lines is called plane geometry .