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Author:
Стелиана Кокинова
GeoGebra
Нови ресурси
ESSENTIAL KNOWLEDGE 2.4.A.1
ESSENTIAL KNOWLEDGE 2.12.A.1
Midpoints
Perpendicular and Parallel Slopes
Philippine Abaniko
Discover Resources
Reflection over y=mx+b
Circumcenter
horizontal and vertical lines
Высота и основание треугольника
Mod A-1.1-4 Review