TY  - JOUR
AU  - Georgieva, Ivanka
AU  - Angelova, Zhorzheta
TI  - Ideas on systemizing problems for solving a triangle in teaching mathematics
JO  - Mathematics and Education in Mathematics
PY  - 2022
SP  - 153
EP  - 171
VL  - 51
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MEM_2022_51_a12/
LA  - bg
ID  - MEM_2022_51_a12
ER  -