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20190220 Q3
Author:
Franky_0219
GeoGebra
New Resources
斐波那契螺旋弧线（表格法-可动态调节）
折扣
中华人民共和国国旗
异形操场
盈利與虧蝕
Discover Resources
linear function
三角形與邊上一點求正三角形
檢驗區
三角形的內角和+內心與外心
多边形的外角和
Discover Topics
Right Triangles
Trigonometric Functions
Reflection
Cone
Pyramid