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正方形推垛
Author:
施奕瑄
GeoGebra
New Resources
拼砌四邊形
第八周作业
球體建築師
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
Discover Resources
內心
柱體體積(三角形)
梯形旋轉
比較角的大小
餘弦公式2
Discover Topics
Prism
Random Experiments
Square
Median Line
Natural Numbers