\[\boxed{\text{892\ (892).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[P = 12;\ \ \ \ \ \ \text{AB} = x;\ \ \ \ \ \text{AD} = y;\ \ \ \ \]
\[\ 0 < x < 6\]
\[2 \cdot (x + y) = 12\ \ \ \ |\ :12\]
\[x + y = 6\ \]
\[y = 6 - x\]
\[x\] | \[3\] | \[4\] |
---|---|---|
\[y\] | \[3\] | \[2\] |
\[Ответ:B(3;3).\]