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锐角三角函数
Author:
孙逸旻
Topic:
Trigonometric Functions
GeoGebra
New Resources
第八周作业3
撒针估算面积实验
第八周作业
活动三：应用性质
第八周作业2
Discover Resources
固定三角形的條件−題6
類正五邊形摺法
trigonometry3
Angle at Centre and Angle at circumference
推移矩陣（y 方向）
Discover Topics
Function Graph
Cuboid
Incircle or Inscribed Circle
Right Triangles
Cosine