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伸展收縮變換
Author:
takaywong
GeoGebra
New Resources
画直线等分三角形的面积
兩位數除以一位數（一）
第八周作业
算柱 (兩位數)
兩組對邊相等的四邊形
Discover Resources
雪花(碎形)
[工具箱] 標示長度
Question 3
test
弓形的滚动
Discover Topics
Correlation
Plane Figures or Shapes
Arithmetic Operations
Cosine
Difference and Slope