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正十二面體
Author:
侯杰材
正十二面體
GeoGebra
New Resources
四邊形的特性
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
錐體建築師
異分母分數減法
Discover Resources
線段上分點軌跡(橢圓)
邊長與三角形（二）
繪圖練習
教學－橫切面
projection01 by Mr LO WY
Discover Topics
Arithmetic
Arithmetic Operations
Addition
Line Segment
Vectors