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Quiz on Discriminant 判別式：測驗
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.geogebra.hk
New Resources
球體建築師
判斷球體
画直线等分三角形的面积
四邊形的特性
兩位數除以一位數（二）
Discover Resources
Addition of 3 Directed Numbers
天水圍循道衛理小學 GeoGebra 幾何創作室 第 2 節
旋轉的概念
Similar Figures (QMSS)
關燈遊戲 Lights Out Cube beta ver.
Discover Topics
Geometry
Similarity Transformation or Similarity
Fractal Geometry
Sine
Numbers