\[Страница\ 58.\]
\[\boxed{\mathbf{173.}}\]
\[На\ рисунке\ показано,\ как\ \]
\[правильно\ \ построить\ \]
\[параллелепипед.\]
\[\boxed{\mathbf{174.}}\]
\[Ребра:\]
\[AM;BN;CK;DP;AD;BC;MP;\]
\[NK;MN;\ AB;DC;PK.\]
\[Вершины:\]
\[A;B;C\ ;D;M;N;P;K.\]
\[Грани:\]
\[ABCD;MNPK;ABNM;DCKP;\]
\[ADMP;BCKN.\]
\[\boxed{\mathbf{175.}}\]
\[\textbf{а)}\ AB;DC;PS.\]
\[\textbf{б)}\ NABM.\]
\[\textbf{в)}\ BCPM;DCPS;ABCD.\]
\[\textbf{г)}\ DCPS.\]
\[\textbf{д)}\ NMPS;BCPM.\]
\[\textbf{е)}\ NM;MR;PS;SN.\]
\[\textbf{ж)}\ A;N;M;B.\]