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The golden number
Author:
Irina Vasilescu
Drag the blue points and watch the ratios.
GeoGebra
New Resources
Multiplying 2-Digit by 1-Digit Numbers Using an Area Model
Multiplication with Area Models
Sets and LCM of Two Numbers
直線的斜率：水平變化和鉛垂變化
The Wallace-Simson Line, the Orthopole, and the Deltoid
Discover Resources
Luas dan keliling persegi
deleston_G2_Transformations
taller1
COSMOS puzzlles - Garden
Discover Topics
Vectors
Kite
Piecewise Functions
Similar Triangles
Linear Programming or Linear Optimization