ideal triangle

Noun

In hyperbolic geometry, a triangle whose vertices are all ideal; i.e. points at infinity, rather than real.

Japanese Meaning

双曲幾何学において、全ての頂点が理想点（無限遠に存在する点）である三角形。

In the Poincaré disk model, an ideal triangle has all three vertices on the boundary at infinity.

ポアンカレ円板モデルでは、理想三角形は3つの頂点が無限遠の境界上にあります。

Sense（1）

In hyperbolic geometry, a triangle whose vertices are all ideal; i.e. points at infinity, rather than real.

ideal triangles

（ plural ）