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Author:
Peng Yu
GeoGebra
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判斷球體
【案例】2018年全国1卷理科12题
畫出對稱圖形
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
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三角形重心
數位學習社
Apollonius Problem 5 CPP Power
橢圓的切線作圖
椭圆的一种画法.许兴华数学
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Perimeter
Function Graph
Diagrams
Area
Quadratic Equations