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三角形的三线
Author:
Xiaoting Yuan
Topic:
Triangles
GeoGebra
New Resources
直角坐標平面上的旋轉變換
判斷球體
畫出對稱圖形
兩組對邊相等的四邊形
兩位數加法
Discover Resources
扇形面積
clock
史坦納圓鍊 (Steiner Chain)
GGBstar
再作万年历单晨
Discover Topics
Step Functions
Isosceles Triangles
Exponent
Median Value
Ellipse