EntityQ3531598· pop 14· linked from 94 articlesorthodiagonal quadrilateralSign in to savequadrilateral in which the diagonals cross at right anglesConnectionscircumscribed circle for triangleEntityangleEntitysquareEntityquadrilateralEntityparallelogramEntitytrapezoidEntityconcyclic pointsEntityArchimedesEntitytriangleEntityareaEntitycircleEntitycomplex numberEntityPythagorean theoremEntityrectangleEntitypolygonEntitymathematical proofEntitydiameterEntityradiusEntityEuclidean vectorEntityrhombusEntityCategoriesTypes of quadrilaterals