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固定面積的圖形周界變化
Author:
phcheng
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
畫出對稱圖形
判斷球體
球體建築師
sanjiaohanshu
四邉形 (四年級) 教師版
Discover Resources
任務4
例題6
Proof35 高士哲
「相似三角形」任务1的副本
单位圆与正弦函数
Discover Topics
Median Line
Coordinates
Inequalities
Rectangle
Right Triangles