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生活中的平面圖形關係─相似
Author:
Galen_1
GeoGebra
New Resources
畫出對稱圖形
直角坐標平面上的旋轉變換
球體建築師
Earth with coastline
兩組對邊相等和有直角的四邊形
Discover Resources
參數式
中一︰全等圖形（平移、旋轉、反射）
平行線法
n等分单位圆作正弦曲线
（三）观察物体
Discover Topics
Similar Triangles
Ratios
Root
Combinatorics
Fractions