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How to draw a decagon with ruler and compasses?
Author:
Pythoner
GeoGebra
New Resources
画直线等分三角形的面积
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
找出對稱軸
畫出對稱圖形
Discover Resources
卡特蘭數 (Catalan Number)
圓上的角任務(二): 提示卡
箭头平移
椭圆内光线的反射
用平面截圆锥
Discover Topics
Calculus
Perimeter
Quadratic Functions
Arithmetic
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