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賺賠：例2
Author:
GeoGebra Institute of Hong Kong
Discover Resources
Unit 11 and 12 Geogebra
Morley’s Theorem
courbe 3 barres
Θεώρημα Πεταλλούδας( BUTTERFLY THEOREM) (THEOR-10)
Alex D animation
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Unit circle
Lines in a Triangle
large angle of triangle
Rectangle
Bagels or Donuts - A Balanced Assessment Task
