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「相似三角形」任务3的副本
Author:
地心引力
,
gklwong
Topic:
Similar Triangles
任务3
GeoGebra
New Resources
判斷球體
拼砌四邊形
四邉形 (四年級) 教師版
sanjiaohanshu
兩位數加法
Discover Resources
平行四邊形面積
動態文字2次函數
正弦曲线sin(x)
認識直徑
两角和的正弦公式几何证明（改进）
Discover Topics
Parabola
Triangles
Binomial Distribution
Curve Sketching
Variance