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geo123
Author:
hsu hung yang
hello
GeoGebra
New Resources
找出對稱軸
兩組對邊相等和有直角的四邊形
球体的体积推导（优化版）
錐體建築師
判斷球體
Discover Resources
太极图
直線排列 3
相對位置的觀察
與三半圓相切之圓填色
猴子爬樹
Discover Topics
Dilation
Correlation
LCM and GCD
Sine
Tangent Function