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學習活動二解的圖形
Author:
CIY
GeoGebra
New Resources
祖冲之的期望：内棋与外棋
平行線的判定
平行線的斜率
活动三：应用性质
龙形曲线-分形龙
Discover Resources
waaachen
平行四邊形與三角形
阿壽工坊GGB Books
推移矩陣（x 方向）
橢圓截圓錐
Discover Topics
Cosine
Arithmetic Operations
Algebra
Pythagoras or Pythagorean Theorem
Hypothesis Testing