Back Orthodiagonales Viereck German Ορθοδιαγώνιο τετράπλευρο Greek Cuadrilátero ortodiagonal Spanish Ortodiagonaalinen nelikulmio Finnish Quadrilatère orthodiagonal French 直交対角線四角形 Japanese Праводијагонален четириаголник Macedonian Patrulater ortodiagonal Romanian Ортодиагональный четырёхугольник Russian Ortodiagonalni štirikotnik Slovenian
In Euclidean geometry, an orthodiagonal quadrilateral is a quadrilateral in which the diagonals cross at right angles. In other words, it is a four-sided figure in which the line segments between non-adjacent vertices are orthogonal (perpendicular) to each other.