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各種四邊形
Author:
Ted Yip
各種四邊形
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
異分母分數減法
四邊形的特性
找出對稱軸
兩位數除以一位數（一）
Discover Resources
大樂透開獎機(由小號到大號)
三角柱展開圖
複合圖形(八)
同心圓和線段-3(線段到最外圓有小圓)
If指令的應用1
Discover Topics
Random Experiments
Polygons
Reflection
Arithmetic
Equations