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平行四邊形面積
Author:
lkkbmaths teachers 檔案儲存用
Topic:
Area
,
Parallelogram
GeoGebra
New Resources
【案例】2013年安徽高考15题
第八周作业
找出對稱軸
【案例】2018年全国1卷理科12题
兩位數除以一位數（二）
Discover Resources
圖二
費氏螺旋線
正方形和長方形有甚麼特性？
How to draw a triangle with ruler and compasses?
多普勒效应动态演示
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Optimization Problems
Numbers
Plane Figures or Shapes
Statistical Characteristics
Difference and Slope