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學習單：三角形任一外角與內角關係
Author:
Tsai, Dung Jung
,
Tim Brzezinski
GeoGebra
New Resources
畫出對稱圖形
算柱 (兩位數)
【案例】2018年全国1卷理科12题
兩位數除以一位數（一）
兩位數加法
Discover Resources
Shen Kuo Frustum
动圆在定圆上滚动
線性規劃
圓外切四邊形
正方体展开图的副本
Discover Topics
Arithmetic
Prism
Integers
Parallelogram
Volume