\[\mathbf{Страница\ 58.}\]
\[\boxed{\mathbf{11.}}\]
\[Постройте\ углы\ \]
\[самостоятельно.\ \]
\[\boxed{\mathbf{12.}}\]
\[\angle AOC = 130{^\circ}.\]
\[\angle AOK = \angle KOC = 65{^\circ}.\]
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\[\textbf{а)}\]
\[\angle ABC = 65{^\circ};\]
\[\angle CBD = 180{^\circ} - 65{^\circ} = 115{^\circ}.\]
\[\textbf{б)}\ \]
\[\angle TPF = 60{^\circ};\]
\[\angle OPF = 180{^\circ} - 60{^\circ} = 120{^\circ}.\]
\[\boxed{\mathbf{14.}}\]