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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
MC #2
從邊長辨認四邊形
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Pythagorean Day
畫三角形
Discover Resources
Yin Yang Yin
cara mendapatkan dua bangun kongruen dengan translasi
Dodecahedron
Ariel Celcis Geogebra Project Period 5
Discover Topics
Percentages
Geometric Mean
Centroid or Barycenter
Logic
Linear Regression