Terms vs Octangle - What's the difference?
terms | octangle |
A geometric figure with eight corners, an octagon.
* {{quote-journal
, year = 1853
, month = May
, title = On certain geometrical relations between a surface of the second degree and a tetrahedron whose edges touch the surface
, first = Thomas
, last = Weddle
, journal = The Cambridge and Dublin Mathematical Journal
, volume = 8
, page = 130
, pageurl = http://books.google.com/books?id=IbQ5AAAAMAAJ&pg=PA130&dq=octangle
, passage = 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
}}
