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面積題 B
Author:
spkwan
GeoGebra
New Resources
正方形雪花图案
折扣
异形操场
撒针估算面积实验
双心四边形
Discover Resources
廻轉式壓縮機運轉圖
三角形四心
新疆八卦城
螢橋國中 洪芷昀
圆锥曲线的统一定义（第二定义）
Discover Topics
Pythagoras or Pythagorean Theorem
Probability
Cosine
Median Value
Mathematics