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習題1
Author:
3A518148黃傳凱
GeoGebra
New Resources
常见四边形是否是双心四边形
活动三:应用性质
中华人民共和国国旗
第三周作业效果演示
第八周作业2
Discover Resources
三角形外心
證平行四邊形 (對角相等)
滚动的三角形
frustum by Mr LO WY
函数作图工具的副本
Discover Topics
Square
Arithmetic Operations
Addition
Congruence
Division