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ahk
Author:
Gideon Huang
GeoGebra
New Resources
兩位數加法
兩組對邊相等的四邊形
錐體建築師
【案例】圆柱体内放置一个大球六个小球
柱體建築師
Discover Resources
與三個半圓相切的圓
拋物線的平移
四下_面積（一）(教師版)
龜甲
認識菱形的特徵
Discover Topics
Similar Triangles
Coordinates
Hypothesis Testing
Geometric Mean
Reflection