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内外弦图
Author:
叶明杰
GeoGebra
New Resources
兩位數除以一位數（一）
錐體建築師
拼砌四邊形
第八周作业
異分母分數減法
Discover Resources
錐體建築師 2
優良作品2
科博館的水畢氏三角
congruent (SS) 2
斐波那契螺旋弧线（表格法-可动态调节）
Discover Topics
Area
Piecewise Functions
Pythagoras or Pythagorean Theorem
Similar Triangles
Tangent Line or Tangent