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正十二面體
Author:
Lin Ching Chieh
GeoGebra
New Resources
第八周作业
兩組對邊相等的四邊形
sanjiaohanshu
找出對稱軸
三位數除以一位數（二）
Discover Resources
複合形體的表面積(凹形)
test2
量角器
三角形内角和
二階克拉瑪公式_找x
Discover Topics
Surface
Translation
Geometric Transformations
Terms
Exponent