Ideal Triangle

In hyperbolic geometry an ideal triangle is a hyperbolic triangle whose three vertices all lie on the circle at infinity. In the hyperbolic metric, any two ideal triangles are congruent. Ideal triangles are also sometimes called triply asymptotic triangles or trebly asymptotic triangles.

Read more about Ideal Triangle:  Models, Properties, Real Ideal Triangle Group

Famous quotes containing the word ideal:

    The ideal American type is perfectly expressed by the Protestant, individualist, anti-conformist, and this is the type that is in the process of disappearing. In reality there are few left.
    Orson Welles (1915–1984)