2. 外语
  3. In the figure above，the area of the shaded region is

In the figure above，the area of the shaded region is

admin2022-10-18  47
问题
In the figure above，the area of the shaded region is
选项 A、 
B、 
C、 
D、 
E、 
答案D
解析 First, the diagonal of the square with sides of length 4 is 4. From this it follows that the area of the shaded region consists of the area of an equilateral triangle with sides 4 minus — the area of a square with sides of length 4. Thus, the area of the shaded region is .
The correct answer is D.
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