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正二十面體
Author:
侯杰材
正二十面體
GeoGebra
New Resources
【案例】2013年安徽高考15题
兩組對邊相等和有直角的四邊形
直角坐標平面上的旋轉變換
算柱 (兩位數)
三位數除以一位數(二)
Discover Resources
Golden Spiral
DSE Circle-ACT02B Angle at centre and circumference
兔子繁殖树状图(斐波那契数列)
七巧板(tangram)的副本
拋物線5--包絡線法
Discover Topics
Arithmetic Operations
Continuity
Straight Lines
Rhombus
Rotation