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作者：
Medienvielfalt
GeoGebra
最新資源
巧算長方形周界
General Polar Equation of Conics with Rotation (1)
apec
Tangent Plane to a Sphere
The Coordinate Plane (Cartesian Plane)
探索資源
Quadrilateral Quandry_rectangle
polygon ring double
Polygon convergence
Angle Bisectors in a Triangle
Make a Candy Bar
探索主題
菱形
立方（體）
內切圓
曲線描繪
等腰三角形