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正十二面體
Author:
huang910316
GeoGebra
New Resources
拼砌四邊形
兩位數除以一位數（一）
【案例】2013年安徽高考15题
兩位數加法
兩組對邊相等和有直角的四邊形
Discover Resources
Circle123456789987654321
曲柄搖桿接雙搖桿
製作及設計繡曲線
happy planet
圓周率的應用 題B
Discover Topics
Real Numbers
Coordinates
Interest Calculation
Orthocenter
Arithmetic Operations