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纏繞畫 五號
Author:
莊智薇
New Resources
Circle Area (By Peeling!)
Graph of Quadratic Function
程自顺100
椭圆的参数方程
学而思1205
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Proof of Pythagoras Theorem(1) 畢氏定理的証明(1)
三角形的面積
中點軌跡(動點在兩圓上)
畢氏定理
複合圖形-梯形
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Symmetry
Area
Triangles
Parabola
Numbers
