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畢氏定理動態證明(四塊直角三角形移動)
Author:
連琨銘
GeoGebra
New Resources
找出對稱軸
第八周作业
兩位數加法
三位數除以一位數（二）
四邊形的特性
Discover Resources
color
圓形墊圈 (Washer) 2
xsin(x)
用面積逼近圓周率的副本
与两圆都相切的动圆圆心的轨迹
Discover Topics
Probability
Arithmetic
Derivative
Cube
Parametric Curves