EntityQ7682884· pop 15· linked from 82 articlestangential trapezoidSign in to savetrapezoid whose four sides are all tangent to a circle within itConnectionssquareEntityquadrilateralEntityparallelogramEntitytrapezoidEntityright angleEntityJapanCountrytriangleEntityareaEntitycircleEntityrectangleEntitylineEntitypolygonEntitydiameterEntityrhombusEntitysquare rootEntitypentagonEntityEuclidean geometryEntityhexagonEntityperimeterEntityright triangleEntityCategoriesTypes of quadrilaterals