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[备考经验] 【SAT官方每日一题】7/25/12 Mathematics > Standard Multiple Choice [复制链接]

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发表于 2012-7-27 22:55:17 |只看该作者 |倒序浏览
Read the following SAT test question and then click on a button to select your answer.
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In triangle , the length of side is and the length of side is . Which of the following could be the length of side ?: [/ U+ v: c+ y% [$ F

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8 g) ]0 N2 N% b0 [A. - j& N' g  r" \  }% a7 c
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B.
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D.
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E.  / r1 X- p' R, k2 t

% S" x( n% x& v) ]4 i' @* _正确答案:D: b1 ]  K' z% a/ i9 V) f" H
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解析:) b: F5 @. S8 T$ F& W* M' p. v
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By the Triangle Inequality, the sum of the lengths of any two sides of a triangle must be greater than the length of the remaining side. Therefore,, or . Thus, , which eliminates options (A), (B), and (C). Also by the Triangle Inequality, , or , which eliminates choice (E). Therefore, of the given choices, only choice (D), , could be the length of side. 5 R4 l% K) w$ s' t+ w# B

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RE: 【SAT官方每日一题】7/25/12 Mathematics > Standard Multiple Choice [修改]

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【SAT官方每日一题】7/25/12 Mathematics > Standard Multiple Choice
https://bbs.gter.net/thread-1405025-1-1.html
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