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向量加法
Author:
TwilightHex
Topic:
Vectors
GeoGebra
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兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
兩位數除以一位數(一)
畫出對稱圖形
画直线等分三角形的面积
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三角函數
求 a + b 的最大值?
同心圓內的直線2
滑桿動晝
長方體動態展開圖
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Square
Sine
Random Variables
Triangles
Median Line