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分数加发
Author:
杨欣霞
GeoGebra
New Resources
判斷球體
Fibonacci Clock
直角坐標平面上的旋轉變換
算柱 (兩位數)
找出對稱軸
Discover Resources
y=ax²的圖形
相似形基本圖形
光的折射（光线自右下向左上）
Similar triangles reasons
莱诺三角形 Reuleaux Triangle及其特性
Discover Topics
Limits
Symmetry
Conic Sections
Continuity
Confidence Interval