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未命名
Author:
Niehanyu
GeoGebra
New Resources
双心四边形
常见四边形是否是双心四边形
直線的斜率：水平變化 & 鉛垂變化
撒针估算面积实验
第八周作业3
Discover Resources
waaachen
task1
Rotation
三角函數的繪圖2-1
earth
Discover Topics
Distributions
Geometric Transformations
Right Triangles
Surface
Sine