\[\boxed{Страница\ \mathbf{44.}}\]
\[\boxed{Вопрос.}\]
\[S_{1} = 1 \cdot 3 = 3\ см^{2}.\]
\[S_{2} = 1 \cdot 2 = 2\ см^{2}.\]
\[S_{3} = 2 \cdot 1 = 2\ см^{2}.\]
\[S = 3 + 2 + 2 = 7\ см^{2}.\]
\[S_{1} = 1 \cdot 1 = 1\ см^{2}.\]
\[S_{2} = 2 \cdot 1 = 2\ см^{2}.\]
\[S_{3} = 1 \cdot 4 = 4\ см^{2}.\]
\[S = 1 + 2 + 4 = 7\ см^{2}.\]