如下图,将5个小正方体按下图方式摆放在地上,有几个面露在外面。

2025-04-14 05:45:51
推荐回答(1个)
回答1:

5个小正方体:
5+(5-1)×3,
=5+4×3,
=5+12,
=17(个);
n个小正方体:
5+(n-1)×3,
=5+3n-3,
=3n+2;
故答案为:17,3n+2.