## Task 2 - 130612

For the "Gallery of Friendship," a rectangular picture with side lengths of $18 \mathrm{~cm}$ and $12 \mathrm{~cm}$ has been framed with a rectangular frame of $3 \mathrm{~cm}$ width made of drawing card.

Determine the area of this frame!
The area of the picture is $12 \cdot 18=216 \mathrm{~cm}^{2}$. The area of the frame and the picture is

$$
(12+2 \cdot 3) \cdot(18+2 \cdot 3)=18 \cdot 24=432 \mathrm{~cm}^{2}
$$

Thus, the area of the frame is $432 \mathrm{~cm}^{2}-216 \mathrm{~cm}^{2}=216 \mathrm{~cm}^{2}$.