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畫三角形 題3d
Author:
GeoGebra Institute of Hong Kong
Topic:
Triangles
GeoGebra
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多邊形的面積
龙形曲线-分形龙
科氏力 (Coriolis Force)
折扣
常见四边形是否是双心四边形
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認識函數
Quiz on Special Lines in Triangles 三角形內的特殊線：測驗
學習單：平行四邊形面積
計算
橢圓3--平行四邊形法
Discover Topics
Difference and Slope
Matrices
Coordinates
Symmetry
Cylinder