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x^2+x+1=0
Author:
Helen Ní Chríodáin
New Resources
Cross Product in 2D and 3D
Construct a Square
van Aubel's Theorem
Ellipse, Hyperbola and Circle as Envelopes
"Compressed" Astroid as Envelope
Discover Resources
Polarkurven - 2D -protot.8
reflection-8
Angles Formed by Intersecting Secants Outside of a Circle
Cut-The-Knot Action (4)!
Units in Scale Drawings: IM 7.1.12
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Ratios
Polygons
Reflection
Square
Real Numbers