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纏繞畫
Author:
洪源朗
GeoGebra
New Resources
画直线等分三角形的面积
異分母分數減法
第八周作业
兩位數除以一位數（二）
兩位數除以一位數（一）
Discover Resources
「相似三角形」任务1
Exploring the changes in mean and median
畢氏定理(面積平移)
projection01 by Mr LO WY
[洋葱] 二次函数中的将军饮马-上(0420)
Discover Topics
Planes
Addition
Optimization Problems
Cube
Real Numbers