\[Стр.\ 93.\]
\[\boxed{\mathbf{5.}}\]
\[\textbf{а)}\ \angle ABC = 110{^\circ};\ \ \ \ \ \ \ \]
\[\angle CBK = 70{^\circ}\]
\[\textbf{б)}\ \angle TPF = 50{^\circ};\ \ \ \ \ \ \ \ \]
\[\angle FPM = 130{^\circ}\]
\[\boxed{\mathbf{6.}}\]
\[\textbf{а)}\ нет;\]
\[\textbf{б)}\ да,\ если\ угол\ \text{AOB} = 190{^\circ};\]
\[\textbf{в)}\ нет.\]