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Author:
陈宜红
Topic:
Congruence
,
Constructions
,
Triangles
GeoGebra
New Resources
GeoGebra数学资源(4-8年级)
椭圆内切圆链
平行線的判定
撒针估算面积实验
第三周作业效果演示
Discover Resources
特別角的三角函數值(2)
圈柱切割
托勒密定理推廣到任意四邊形一
Liu Huis Methode zum Finden von π
手机下载课件
Discover Topics
Multiplication
Algebra
Integers
Right Triangles
Trigonometric Functions