Octangle

//ˈɑk.tæŋ.ɡ(ə)l//

"Octangle" in a Sentence (1 examples)

The angles of any two of the tetrahedra ABCD, A′B′C′D′, and OO′O″O‴ form the angles of a complete syngrammatic octangle whose syngrammatic points are the angles of the other tetrahedron […]

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