\[Страница\ 12.\]
\[\boxed{\mathbf{2}.}\]
\[\boxed{\mathbf{3}.}\]
\[MP;NK;CP;BA.\]
\[\boxed{\mathbf{4}.}\]
\[\angle MOK;\ \angle NOK;\ \angle MON.\]
\[\boxed{\mathbf{5}.}\]
\[\angle BAC;\ \angle BAD;\ \angle BAE;\ \angle CAD;\ \]
\[\angle CAE;\ \angle DAE.\]