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Author:
清綺楊
GeoGebra
New Resources
異分母分數減法
画直线等分三角形的面积
找出對稱軸
兩組對邊相等和有直角的四邊形
第八周作业
Discover Resources
角α与-α的正弦函数关系
緯度、日照、影長
ISOSCELES TRIANGLE
雙曲線
我的第一个绘本
Discover Topics
Incircle or Inscribed Circle
Multiplication
LCM and GCD
Tangent Function
Numbers