(1)
Kuz’mich, V.; Kuzmich, L.; Savchenko, O. FORMATION OF THE CONCEPT OF ANGLE BY MEANS OF METRIC GEOMETRY ON GEOMETRIC MATERIAL OF 9TH GRADE. ФМО 2021, 29 (3), 6-12. https://doi.org/10.31110/2413-1571-2021-029-3-001.