\[\boxed{\mathbf{579\ (579)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[= 30 + 14 + 30 + 30 =\]
\[= 104\ (см).\]
\[S_{1} = 12 \cdot 4 = 48\ см^{2}.\]
\[S_{3} = 12 \cdot 4 = 48\ см^{2}.\]
\[S_{2} = (18 - 4) \cdot (12 + 6 + 12) =\]
\[= 14 \cdot 30 = 420\ см^{2}.\]
\[S = S_{1} + S_{2} + S_{3} =\]
\[= 48 + 48 + 420 = 516\ см^{2}.\]
\[Ответ:104\ см;\ \ 516\ см^{2}.\]