AMC8 2006
AMC8 2006 · Q6
AMC8 2006 · Q6. It mainly tests Area & perimeter.
The letter T is formed by placing two 2 inch × 4 inch rectangles next to each other, as shown. What is the perimeter of the T, in inches?
字母 T 是由两个 2 英寸 × 4 英寸的矩形并排放置形成的，如图所示。T 的周长是多少英寸？
(A)
12
12
(B)
16
16
(C)
20
20
(D)
22
22
(E)
24
24
Answer
Correct choice: (C)
正确答案：（C）
Solution
If the two rectangles were seperate, the perimeter would be $2(2(2+4)=24$. It easy to see that their connection erases 2 from each of the rectangles, so the final perimeter is $24-2 \times 2 = \boxed{\textbf{(C)}\ 20}$.
如果两个矩形是分开的，周长将是 $2(2(2+4)=24$。很容易看出它们的连接消除了每个矩形的 2，所以最终周长是 $24-2 \times 2 = \boxed{\textbf{(C)}\ 20}$。
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