biangle
A digon or bigon; a two-sided shape (especially in non-Euclidean geometry)
Noun
- A digon or bigon; a two-sided shape (especially in non-Euclidean geometry)
- If n planes be drawn through any axis of the right-vector, each of which makes angles π/n with the planes on either side of it, the whole of space is divided into n congruent figures which may be called biangles, the...
- Then the right biangle CABD and the oblique biangle CPND are equivalent since the triangles API and BNI are congruent. - 1912, Proceedings of the Edinburgh Mathematical Society, volumes 30-32, Scottish Academic Press,...
- It is therefore natural to consider whether precisely this concept of a straight line, with which Kant¹¹ too was familiar, is the reason why Kant in the one passage says that the concept of a straight biangle is free of...
Origin
From bi- + angle.