Lingkaran Singgung Luar Segiempat Tidak Konveks

(Fail lampirannya tidak ada dalam cd)This thesis discusses how to construct a tangent circle outside the non-convex quadrilateral and to prove the concurrency of six bisector angles using Ceva’s Theore, it also gives the requirements that the non-convex quadrilateral have a tangential non-convex quadrilateral. It also discusses the length of radius tangent circles outside the non-convex q…