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西姆松定理
Author:
JJ Wong
GeoGebra
New Resources
盈利與虧蝕
直線的斜率
撒针估算面积实验
平行線的斜率
探究三角形的全等條件
Discover Resources
Proof of Pythagorean Theorem with Shearing
六角柱(可側轉、上下轉)
拼貼3
Copy of 立體圖形－截面
箭頭引導法計算文字乘以文數字