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生活中的平面圖形關係─相似
Author:
Galen_1
GeoGebra
New Resources
直角坐標平面上的旋轉變換
近似值：有效數字
算柱 (兩位數)
sanjiaohanshu
美國國旗 (Codex 版)
Discover Resources
Verification of Pythagoras Theorem 驗証畢氏定理
gyzpa 拋物線焦點準線
多邊形周界A
sin函數
圓心角
Discover Topics
Combinatorics
Dilation
Similarity Transformation or Similarity
Equilateral Triangles
Algebra