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circle1
Author:
lchsb
GeoGebra
New Resources
三角函数 的副本
异形操场
第八周作业
第三周作业效果演示
盈利與虧蝕
Discover Resources
用正多邊形面積逼進圓周率
反射變換
Distributive Law of Multiplication 1 (乘法的分配率 1)
Copy of 仙后座找北極星1
sintx
Discover Topics
Kite
Tangent Line or Tangent
Ratios
Right Triangles
Angles