【OG20-P292-440题】In the figure above, PQR and STU are identical equ_OG17新题

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【OG20-P292-440题】

In the figure above, PQR and STU are identical equilateral triangles, and PQ = 6. What is the perimeter of polygon PQWTUVR?

(1) Triangle SWV has perimeter 9.

(2) VW has length 3.5.

A

Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
分析A选项
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B

Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
分析B选项
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C

BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
分析C选项
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D

EACH statement ALONE is sufficient.
分析D选项
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E

Statements (1) and (2) TOGETHER are NOT sufficient.
分析E选项
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当前版本由 huan~ 更新于2018-09-25 17:48:59 感谢由 huan~ 对此题目的解答所做出的贡献。

题干：两个三角形的边长都是6

总的周长是36

条件1：已知△SWV周长是9，剩下的就是七边形PQWTUVR周长：36-9=27，充分

条件2：不充分

提交

Stanley想去荷兰

我寻思着题干也只是说他两等边三角形。没说他俩是一样的呀？？？

0 0 回复 2020-01-10 13:21:35
11

(1) Triangle SWV has perimeter 9. perimeter of polygon PQWTUVR = twice perimeter of PQR - the perimeter of SWV We can know the perimeter of PQR and of SWV => Sufficient (2) VW has length 3.5 We do now know the perimeter of SWV if we just have the length of VW => Insufficient Ans: A

0 0 回复 2017-11-19 06:47:20
qpalzm

（1）小三角形周长9，所以ST+SU+QR-(SWV)+PQ+PR+TU即（6+6+6-9）+6+6+6=27 （2）notsufficient

0 0 回复 2017-07-29 15:44:55
闪闪的闪闪

？？？

0 0 回复 2017-06-25 12:48:30