看不懂的 "Each of two opposite faces"

Mchao_l

QYQ Sec3-13
What is the volume of a certain rectangular solid?
(1) Two adjecent faces of the solid have areas 15 and 24, respectively.
(2) Each of two opposite faces of the solid has area 40.
答案(C)
其中对(2)的解决是,(2)长方体的两个相对面的面积是40.

为什么不以理解each of two opposite faces 为: 长方体的每个相对面都是40( 就是立方体), 而题目也没说rectangular 不是cube.

请各位XDJM给我解惑。谢了.

Mchao_l

在沉睡中谢过wjw