GWD数学12套Q22，急急急

supercaren · 发表于 2013-1-9 17:36:03

求助Q22,(图是一个长方体，AB是不在同一个平面上的两个相对的角，线段AB是连接长方体任意两个定点的线段中最长的)
What is the volume of the cube above?
(1)   The surface area of the cube is 600 square inches.
(2)   The length of diagonal AB is 10√3 inches.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
给的答案是D,实在不知到怎么得到的？

supercaren · 发表于 2013-1-9 18:52:45

为什么木有人理我呢？呜呜~~~

thirdwheel · 发表于 2013-1-9 19:04:11

老大人家说的是CUBE 就是正方体

supercaren · 发表于 2013-1-9 19:37:41

呃,原来如此...羞死了

GWD数学12套Q22，急急急

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