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2次函數_變數
Author:
林宗穎
GeoGebra
New Resources
画直线等分三角形的面积
三位數除以一位數（二）
四邊形的特性
兩組對邊相等的四邊形
兩位數加法
Discover Resources
angle0428
图形
Math Project
二面角
橢圓的切線作圖
Discover Topics
Line Segment
Curve Sketching
Pythagoras or Pythagorean Theorem
Tree Diagrams
Variance