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Author:
dhc987
GeoGebra
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近似值：有效數字
第八周作业
兩組對邊相等和有直角的四邊形
找出對稱軸
Earth with coastline
Discover Resources
Circumference 圓周
尺規作圖乾淨版
反演(Inversion)
軌跡五、六︰移動點與兩直線保持相等距離(平行線/角平分線)
「相似三角形」任务5的副本
Discover Topics
Integers
Reflection
Parametric Curves
Vectors 2D (Two-Dimensional)
Similar Triangles