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正弦余弦刻度尺
Author:
丁银杰
Topic:
Trigonometry
GeoGebra
New Resources
柱體建築師
第八周作业
三位數除以一位數（一）
算柱 (兩位數)
兩位數除以一位數（一）
Discover Resources
七巧板
周界-平移法(練習三)
六芒星
保持比例
平行四邊形的面積的副本
Discover Topics
Linear Programming or Linear Optimization
Multiplication
Correlation
Poisson Distribution
Median Line