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Copy of 銳角三角：sin, cos
Author:
Gideon Huang
,
羅驥韡 (Pegasus Roe)
GeoGebra
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【案例】2013年安徽高考15题
柱體建築師
直角坐標平面上的旋轉變換
四邊形的特性
兩位數加法
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PMC 2014-15 Q5
三角測量
Locus: Fixed Distance From Line Segment
金剛合體！！
欧拉线
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Numbers
Mathematics
Plane Figures or Shapes
Sequences and Series
Tangent Line or Tangent