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雙橢
Author:
Lin Ching Chieh
GeoGebra
New Resources
椭圆内切圆链
平行線的判定
镂空正方体案例对比
正方形雪花图案
中华人民共和国国旗
Discover Resources
扇形面積公式3
千分位分數
gjc093b19 梯形的面積
Cross Product for 2D Vectors (平面外積)
勒洛四面体(参数曲面法)
Discover Topics
Multiplication
Conic Sections
Geometric Mean
Arithmetic Operations
Cuboid