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Camera Obscura 2D
Author:
optowiki.info (Michael Schaefer)
GeoGebra
New Resources
PIP Feuerbachova kružnica (c) Vozárová, Vandlíková
PIP Napoleonova veta
Isosceles Triangle: Quick Construction
Witch of Agnesi - A Classical Construction
Simplifying Radicals: Geometric Thin Slice
Discover Resources
Rolling Square
CUED_Colours1
GIS Topics
Что в чёрном ящике?
Triangle Exterior Angle