For citations:
Ivanov S.G., Ryzhik V.I. RESEARCH AND PROJECT PROBLEMS IN PLANE GEOMETRY USING COMPUTER PROGRAM "THE GEOMETER’S SKETCHPAD". Informatics and education. 2016;(7):45-48. (In Russ.)
Ivanov S.G., Ryzhik V.I. RESEARCH AND PROJECT PROBLEMS IN PLANE GEOMETRY USING COMPUTER PROGRAM "THE GEOMETER’S SKETCHPAD". Informatics and education. 2016;(7):45-48. (In Russ.)