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Author:
俞光隆
GeoGebra
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兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
算柱 (兩位數)
GeoGebra笔记功能体验课件
Discover Resources
Measuring Volume 4
直線坐標標點
三角函數圖形（全）
扇形弧長公式2
正六邊形串珠
Discover Topics
Rotation
Equations
Trapezoid
Terms
Correlation