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相似三角形
Author:
vincent21891
Topic:
Similar Triangles
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兩位數除以一位數（一）
畫出對稱圖形
找出對稱軸
直角坐標平面上的旋轉變換
算柱 (兩位數)
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商高定理2
三角柱算體積
數學傳播39卷4期, 平面幾何公式思考
Pyramid with square base (angle between planes)
斜率是定值
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Natural Numbers
Sequences and Series
Similarity Transformation or Similarity
Parabola
Geometric Distribution