- In geometry, a bigon, digon, or a 2-gon, is a polygon with two sides (edges) and two vertices. Its construction is degenerate in a Euclidean plane because either the two sides would coincide or one or both would have to be curved; however, it can be easily visualised in elliptic space. It may also be viewed as a representation of a graph with two vertices, see “Generalized polygon”.
- Ecclesiastes (Wikipedia)
Ecclesiastes (/ɪˌkliːziˈæstiːz/, ih-KLEE-zee-ASS-teez; Biblical Hebrew: קֹהֶלֶת, romanized: Qōheleṯ, Ancient Greek: Ἐκκλησιαστής, romanized: Ekklēsiastēs) is one of the Ketuvim (“Writings”) of the Hebrew Bible and part of the Wisdom literature of the Christian Old Testament. The title commonly used in English is a Latin transliteration of the Greek translation of the Hebrew word קֹהֶלֶת (Kohelet, Koheleth, Qoheleth or Qohelet). An unnamed author introduces “The words of Kohelet, son of David, king in Jerusalem” (1:1) and does not use his own voice again until the final verses (12:9–14), where he gives his own thoughts and summarises the statements of Kohelet; the main body of the text is ascribed to Kohelet himself.
- Triangle (Wikipedia)
A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted △ABC.
- Monogon (Wikipedia)
In geometry, a monogon, also known as a henagon, is a polygon with one edge and one vertex. It has Schläfli symbol {1}.