: a branch of mathematics that deals with the measurement, properties, and relationships of points, lines, angles, surfaces, and solids. broadly : the study of properties of given elements that remain invariant under specified transformations. b. : a particular type or system of geometry.
Geometry is defined as “a branch of mathematics that deals with the measurement, properties, and relationships of points, lines, angles, surfaces, and solids.” Put even more simply, geometry is a type of math that deals with points, lines, shapes, and surfaces.
Euclidean geometry
In several ancient cultures there developed a form of geometry suited to the relationships between lengths, areas, and volumes of physical objects Analytic geometry
Analytic geometry was initiated by the French mathematician René Descartes (1596–1650) Projective geometry
Projective geometry originated with the French mathematician Girard Desargues (1591–1661) to deal with those properties of geometric figures that are not Differential geometry
The German mathematician Carl Friedrich Gauss (1777–1855), in connection with practical problems of surveying and geodesy Non-Euclidean geometries
Beginning in the 19th century, various mathematicians substituted alternatives to Euclid’s parallel postulate, which, in its modern form, reads Topology
Topology, the youngest and most sophisticated branch of geometry History of geometry
The earliest known unambiguous examples of written records—dating from Egypt and Mesopotamia about 3100 bce—demonstrate that ancient Ancient geometry: practical and empirical
The origin of geometry lies in the concerns of everyday life. The traditional account, preserved in Herodotus’s History (5th century bce) 