\[\boxed{\mathbf{2}\mathbf{.}\mathbf{164}}\]
\[\textbf{а)}\ AM = 17\ см.\]
\[MK = AM - 14 = 17 - 14 =\]
\[= 3\ см.\]
\[KB = AM - 4 = 17 - 4 = 13\ см.\]
\[AB = AM + MK + KB =\]
\[= 17 + 3 + 13 = 33\ см.\]
\[\textbf{б)}\ AB = 61\ см.\]
\[MK = 24\ см.\]
\[AM = MK + 5 = 24 + 5 = 29\ см.\]
\[KB = AB - (AM + MK) =\]
\[= 61 - (24 + 29) = 61 - 53 =\]
\[= 8\ см.\]
\[\textbf{в)}\ AB = 75\ см.\]
\[AK = 30\ см.\]
\[MB = 51\ см.\]
\[MK = (AK + MB) - AB =\]
\[= (30 + 51) - 75 = 81 - 75 =\]
\[= 6\ см.\ \]