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GeoGebra
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綱要
相似形應用_進階_Collection
Slope of a Line
perpendicular lines
distance between point-line
Proof without words: Cosine Rule (餘弦公式)
areas of similar triangles
Similar Triangles, exercise 1
垂線斜率_1
相似形應用_進階_Collection
作者：
Reinhold Yen
Slope of a Line
perpendicular lines
distance between point-line
Proof without words: Cosine Rule (餘弦公式)
areas of similar triangles
Similar Triangles, exercise 1
垂線斜率_1
下一步
Slope of a Line
最新資源
找出對稱軸
異分母分數減法
近似值：有效數字
第八周作业
三位數除以一位數（二）
探索資源
參數式
龍騰4_1-1講段9
test file
S6 3D Basic Concept
鏡射的副本
探索主題
矩形
代數
平行四邊形
機率
微分
