In geometry, a quadrilateral is a polygon with four sides or edges and four vertices or corners. Sometimes, the term quadrangle is used, for etymological symmetry with triangle ...
A quadrilateral, sometimes also known as a tetragon or quadrangle (Johnson 1929, p. 61) is a four-sided polygon. If not explicitly stated, all four polygon vertices are generally ...
The Wesleyan Quadrilateral is a methodology for theological reflection that is credited to John Wesley, leader of the Methodist movement in the late 18th Century.
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