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任务8：一线三等角的相似模型
Author:
陈丽婷
GeoGebra
New Resources
圓的基本性質
龙形曲线-分形龙2
第八周作业
正方形雪花图案
比較五件物件的重量
Discover Resources
等腰三角形內嵌矩形
模擬3D物件
angle sum of polygon
pyramid by Mr LO WY
[洋葱] 费马点问题
Discover Topics
Percentages
Congruence
Triangles
Differential Calculus
Quadratic Functions