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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
柱體建築師
球體建築師
三位數除以一位數（二）
GeoGebra笔记功能体验课件
兩組對邊相等的四邊形
Discover Resources
waaachen
正立方體中的正四面體
長方體旋轉
TEST
外心
Discover Topics
Random Experiments
Frequency Distribution
Rotation
Multiplication
Angles