SAT官方每日一题：2012年3月10日
2012-03-17来源:互联网
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2012年03月10日
考试类型: Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
The perimeter of a 7-sided figure is 15. If the length of each side of the figure is increased by 2 units, what is the perimeter of the new figure?
A. 17
B. 22
C. 24
D. 29
E. 30
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正确答案:D 解析: The perimeter is the sum of the lengths of all the sides. Since each of the seven sides is to be increased by 2, there will be a total increase of 14 in the perimeter. The original perimeter, 15, plus the increase, 14, gives the new perimeter, 29. |
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