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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
Autor:
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
Próximo
Slope of a Line
Novos Materiais
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
直角坐標平面上的旋轉變換
【案例】2018年全国1卷理科12题
三位數除以一位數（一）
Descobrir recursos
底數大於1時的指數變化情形
橢圓旋轉
等高
圖二 的複本
劉徽的「割圓術」 的複本
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