Geometry
(from the Greek words Geo = earth and metro = measure) is the branch of mathematics first popularized in ancient Greek culture by Thales (circa 624547 BC) dealing with spatial relationships. The earliest beginnings of geometry may be traced to Ancient Egypt (see Egyptian mathematics: Geometry). The Rhind Mathematical Papyrus describes an astoundingly precise means of obtaining an approximation of Pi, accurate to within less than one per cent. The Rhind Mathematical Papyrus also describes one of the earliest attempts at squaring the circle as well as a kind of an analogue of the cotangent.
(From Wikipedia, the free encyclopedia.)
