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光芒之星
Author:
李春培
光芒之星
GeoGebra
New Resources
球体的体积推导
拼砌四邊形
兩組對邊相等和有直角的四邊形
畫出對稱圖形
球体的体积推导（优化版）
Discover Resources
雙曲線
扇形概念與面積
百分數
七巧板
分數化百分數(以方程計算，增潤項目)
Discover Topics
Trigonometry
Cube
Isosceles Triangles
Area
Cone