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】圆柱体内放置一个大球六个小球
三位數除以一位數（一）
判斷球體
兩位數除以一位數（二）

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Ex 12C NO.7
圓錐曲線---雙曲線
vector addition and subtraction
正立方體的截痕
Rectangle
Riemann sum of double integral

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Optimization Problems
Diagrams
Tangent Function
Rectangle
Ratios