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S0G38 三角形的內心
Author:
学用数学
GeoGebra
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sanjiaohanshu
兩位數除以一位數（二）
找出對稱軸
小数 的副本
柱體建築師
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carrito
test
glt-h02-01-長方體動態展開圖
圓與兩平行切線
推移矩陣（x 方向）
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Similarity Transformation or Similarity
Tangent Function
Rectangle
Trigonometric Functions
Equilateral Triangles