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三角形面積.Area of Triangle
Author:
harryau
Area of triangle. 三角形面積.
GeoGebra
New Resources
四邊形的特性
sanjiaohanshu
畫出對稱圖形
直角坐標平面上的旋轉變換
兩組對邊相等的四邊形
Discover Resources
技巧
正四棱錐
圓錐(可改底面圓半徑、錐體高)
Copy of 劉徽的「割圓術」
圓柱體表面面積的副本
Discover Topics
Arithmetic Mean
Means
Cuboid
Triangles
Right Triangles