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同心圓和線段-3(線段到最外圓有小圓)
Author:
jessice
GeoGebra
New Resources
GeoGebra笔记功能体验课件
畫出對稱圖形
兩組對邊相等和有直角的四邊形
球体的体积推导（优化版）
錐體建築師
Discover Resources
Pyramid (Angle between Plane HBC and HCD)
螢橋國中 陳柏丞
比較角的大小(直接比較)
地球上的直線距離
数线段
Discover Topics
Numbers
Confidence Interval
Quadrilaterals
Interest Calculation
Congruence