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Esquema
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
Siguiente
Slope of a Line
Nuevos recursos
三位數除以一位數（二）
球体的体积推导（优化版）
【案例】2013年安徽高考15题
四邊形的特性
兩組對邊相等和有直角的四邊形
Descubrir recursos
格子點問題
N邊形滾動
circle1
史坦納圓 (Steiner Circle)
彈跳球
Descubre temas
Congruencia
Baricentro
Ortocentro
Problemas de Optimización
Vectores 2D (dos dimensiones)
