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先估算，後看解釋
Author:
Tse Sir
先估算，後看解釋
New Resources
畫出對稱圖形
第八周作业
算柱 (兩位數)
球體建築師
Nested spiral octagon
Discover Resources
正弦曲线sin(x)
截角八面體摺紙模板new
試作
到两点距离之积为定值的点的轨迹
justin0704
Discover Topics
Rectangle
Piecewise Functions
Continuity
Polynomial Functions
Circle