一道OG20 DS求解~

晞晞xixixi · 发表于 2019-7-29 11:13:12

A pentagon with 5 sides of equal length and 5 interior angles of equal measure is inscribed in a circle. Is the perimeter of the pentagon greater than 26 centimeters?

1.The area of the circle is 16π square centimeters.

2.The length of each diagonal of the pentagon is less than 8 centimeters.

AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
CBOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
DEACH statement ALONE is sufficient.
EStatements (1) and (2) TOGETHER are NOT sufficient.

这道题的答案选D，但是我选的是A，想问问大家条件2怎么能够求出来的~谢谢大家啦

一道OG20 DS求解~

所属分类: GMAT考试

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