为了让我们更好的适应sat考试，sat官网每天都会有sat官方每日一题，下面是小编为您整理的2016年1月sat官方每日一题，是数学选择，让我们一起来看一看这道数学选择吧。

　　Read the following SAT test question and then click on a button to select your answer.

　　If triangle ABC above is congruent to triangle DEF (not shown), which of the following must be the length of one side of triangle DEF?

　　(A) 18

　　(B) 24

　　(C) 3 times (square root 6)

　　(D) 6 times (square root 3)

　　(E) It cannot be determined from the information given.

　　答案：D

　　解析：

　　Triangle ABC is congruent to triangle DEF, so the lengths of the three sides of triangle DEF are the same as the lengths of the three sides of triangle ABC. Triangle ABC is a 30 degrees - - 90 degrees triangle with hypotenuse of length 12, so the other two sides of triangle ABC have lengths 6 and 6 times (square root 3). Therore, the lengths of the sides of triangle DEF must be 12, 6, and 6 times (square root 3). Of the choices given, only 6 times (square root 3) is one of these values.

　　上面是小编为您整理的2016年1月sat官方每日一题，是数学选择，为了让我们更好的适应sat考试，sat官网每天都会有sat官方每日一题，让我们一起来看一看这道数学选择吧。

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