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劉虹圻 內心
Author:
呂麗珠
GeoGebra
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四邉形 (四年級) 教師版
畫出對稱圖形
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
四邊形的特性
Discover Resources
任務5
sum of interior angle
曲柄滑塊模擬
分數乘法2
sin函數相加
Discover Topics
Quadratic Equations
Numbers
Equations
Tangent Line or Tangent
Vectors