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硬幣繞多邊形面積
Author:
AlexWang
GeoGebra
New Resources
兩位數除以一位數（一）
找出對稱軸
異分母分數減法
算柱 (兩位數)
兩位數加法
Discover Resources
Standard Deviation (one data set) 標準差（一組數據）
周界-平移法(練習四)
同心圓和線段-2(最外圓大小固定)
Drag the red dots, see the area ratio of EHFG to ABCD
三角測量01
Discover Topics
Kite
Logarithm
Scatter Plot
Indefinite Integral
Congruence