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畫三角形 題2d
Author:
GeoGebra Institute of Hong Kong
Topic:
Isosceles Triangles
,
Triangles
GeoGebra
New Resources
直角坐標平面上的旋轉變換
近似值：有效數字
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
三位數除以一位數（一）
Discover Resources
海龍公式與內切圓半徑
some pic
偽國中數學幾何題
三角格紋
數學傳播39卷4期, 平面幾何公式思考
Discover Topics
Diagrams
Exponent
Perimeter
Centroid or Barycenter
Translation