each of the two opposite faces of the solid has area 40大家怎么理解？

凌幽若

DS题，OG122道数学，反正说一个长方体里，这句话肿么理解？
只是说某一个对立面面积40还是任意对立面都是40啊？

sdcar2010

Two opposing sides out of the 6 possible sides have an area of 40.