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最小周長
Author:
張丰耘
GeoGebra
New Resources
判斷球體
兩組對邊相等和有直角的四邊形
四邊形的特性
拼砌四邊形
sanjiaohanshu
Discover Resources
Square Root 平方根
點之極線定理 / polar of a point theorem
橢圓
变形的正方形
学习几何
Discover Topics
Cube
Distributions
Optimization Problems
Rational Numbers
Symmetry