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Spiral1
Author:
chen mingchuan
GeoGebra
New Resources
正方形雪花图案
直線的斜率：水平變化 & 鉛垂變化
科赫雪花
第八周作业1
撒针估算面积实验
Discover Resources
圓交與公切線
折扣 例1
選擇合適的「中間人」
angle at centre vs angle at circumference
乘法練習
Discover Topics
Rotation
Cuboid
Polygons
Surface
Quadratic Functions