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杯子反射光線(包絡)
Author:
陳柄何
Topic:
Curve Sketching
GeoGebra
New Resources
【案例】2013年安徽高考15题
三位數除以一位數（一）
三位數除以一位數（二）
兩組對邊相等的四邊形
小数 的副本
Discover Resources
Add and subtract 2
上色練習
李樂雯_尋找PI的活動
Example 4
All in one (Centres of triangle)
Discover Topics
Quadrilaterals
Function Graph
Rotation
Area
Symmetry