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阴影部分例子
Author:
engeng
GeoGebra
New Resources
異分母分數減法
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
兩位數加法
判斷球體
Discover Resources
同學最喜愛的運動
Sequence指令練習(逐一套疊正方形)
頂點法
面積趣味題
三角形三边关系
Discover Topics
Fractions
Special Points
Arithmetic Mean
Perimeter
Tree Diagrams