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How to draw a pentagon with ruler and compasses?
Author:
Pythoner
GeoGebra
New Resources
探究三角形的全等條件
撒针估算面积实验
比較五件物件的重量
圓的切線方程
直線的斜率：水平變化 & 鉛垂變化
Discover Resources
circle1
圓錐曲線---拋物線
拿破崙三角形(費馬點)
棒形圖2(我最喜愛的科目)
泰北2017GGB研習
Discover Topics
Vectors
Expected Value
Cosine
Sphere
Scalene Triangles