AMC8 1998
AMC8 1998 · Q13
AMC8 1998 · Q13. It mainly tests Area & perimeter.
What is the ratio of the area of the shaded square to the area of the large square? (The figure is drawn to scale.)
阴影正方形的面积与大正方形的面积之比是多少？（图形按比例绘制。）
(A)
\frac{1}{6}
\frac{1}{6}
(B)
\frac{1}{7}
\frac{1}{7}
(C)
\frac{1}{8}
\frac{1}{8}
(D)
\frac{1}{12}
\frac{1}{12}
(E)
\frac{1}{16}
\frac{1}{16}
Answer
Correct choice: (C)
正确答案：（C）
Solution
Divide the square into 16 smaller squares. The shaded square is 2 small squares. Ratio $2/16 = 1/8$.
将正方形分成 16 个小正方形。阴影正方形是 2 个小正方形。比例 $2/16 = 1/8$。
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