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Углы 90 на окружности
Author:
MarinOsa
GeoGebra
New Resources
van Aubel's Theorem
Supplementary Angles
Simplifying Radicals: Geometric Thin Slice
Simplifying Radicals: Geometric Thin Slice
Bottema's Theorem
Discover Resources
Drawing a circle in perspective
GeoGebra #19 9/19/16
face2face9
Munker illusion
Reflection and Refraction iPad version