EntityQ1783542· pop 13· linked from 189 articlesconvex geometrySign in to savebranch of geometry that studies convex setsConnectionsparallelogramEntitydimensionEntitynon-Euclidean geometryEntitycompass and straightedge constructionEntityspherical trigonometryEntitysymplectic geometryEntitymathematicsEntityRené DescartesEntityArchimedesEntitygeometryEntityPythagorasEntityEuclidEntityCarl Friedrich GaussEntityBlaise PascalEntityLeonhard EulerEntitytriangleEntityareaEntityInternational Standard Book NumberEntityOmar KhayyámEntityDavid HilbertEntityCategoriesConvex geometry