EntityQ2852454· pop 13· linked from 160 articleselliptical archSign in to saveplane curve drawn by an odd number of circular arcsConnectionsarchEntityMiddle AgesEntityRenaissanceEntityInternational Standard Book NumberEntitycircleEntityradiusEntitydigital object identifierEntityellipseEntityGloucesterEntityNeuilly-sur-SeineEntityLondon BridgeEntityline segmentEntityHero of AlexandriaEntitySaumurEntityMantes-la-JolieEntitytangentEntityisosceles triangleEntityvaultEntityNogent-sur-MarneEntitycurvatureEntityCategoriesArch bridgesArchitectureBridgesPiecewise-circular curves