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畢氏定理與餘弦定理幾何圖解證明
Author:
黃紹東
GeoGebra
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Poorly Drawn Parallelograms 3
alg2_05_05_01_applet_exp_2_flvs
alg2_05_05_04_applet_exp_fxn_flvs
Average Rate of Change: Graph a Function (1)
Icosahedron
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Point-Slope Form
Algebra Tiles4
Geometry
משולש שווה שוקיים
Feuerbach Action! (GoGeometry Action 167)
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Numbers
Mode
Conic Sections
Algebra
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