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Dudeney's puzzle + lesson plan
Author:
Ivan De Winne
Dudeney's famous haberdasher puzzle (1908) Cut an equilateral triangle into four pieces that can be arranged to form a square with the same area
GeoGebra
New Resources
Graph of y = ax² + bx + c
Sketching Vector Function (1)
Drunk Parabola
Average Distance
Untitled
Discover Resources
tore croisé
IntersectionDeuxDroitesEspace
Ellipsejardin
.ggb files
An angle formed by two tangent lines and Major and Minor arcs
practice
Unit 2 Topic 4_5 AROC and IROC 04
Discover Topics
Translation
Arithmetic Operations
Arithmetic Mean
Standard Deviation
Linear Programming or Linear Optimization