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平行四邊形的高
Author:
鍾文欽
Topic:
Parallelogram
GeoGebra
New Resources
兩位數加法
三位數除以一位數（二）
算柱 (兩位數)
柱體建築師
判斷球體
Discover Resources
以反演看 n 次方根
sine graph 變換
一元二次不等式(2)
試算表的很多正方形
整數乘分數
Discover Topics
Scalene Triangles
Subtraction
Area
Difference and Slope
Derivative