TY  - JOUR
AU  - Quang Hung Tran
AU  - Manh Dung Tran
TI  - A generalization of Ptolemy's theorem
JO  - The Teaching of Mathematics
PY  - 2024
SP  - 104 
VL  - XXVII
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.57016/TM-QDPS2407/
DO  - 10.57016/TM-QDPS2407
LA  - en
ID  - 10_57016_TM_QDPS2407
ER  -