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PMC 2014-15 Q6
Author:
Arthur Lee
,
Anthony OR 柯志明
The area of the square (which consists of 3 triangles) is 8 cm^2. The triangles can be rearranged by dragging the red dots to make a rectangle. What will be the perimeter of that rectangle?
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找出對稱軸
【案例】2013年安徽高考15题
四邉形 (四年級) 教師版
三位數除以一位數(二)
球体的体积推导(优化版)
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