Euclidean geometry is a mathematical system attributed to Alexandrian Greek mathematician Euclid, which he described in his textbook on geometry: the Elements. Euclid's method consists in assuming a small set of intuitively appealing axioms, and deducing many other propositions from these.

What does word Euclidean mean?

: of, relating to, or based on the geometry of Euclid or a geometry with similar axioms.

Why is it called Euclidean?

Euclidean geometry gets its name from the ancient Greek mathematician Euclid who wrote a book called The Elements over 2,000 years ago in which he outlined, derived, and summarized the geometric properties of objects that exist in a flat two-dimensional plane.