ideal triangle
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Ideal_circles.svg/220px-Ideal_circles.svg.png)
Noun
[edit]ideal triangle (plural ideal triangles)
- In hyperbolic geometry, a triangle whose vertices are all ideal; i.e. points at infinity, rather than real.
ideal triangle (plural ideal triangles)