Calculate the surface area of the cuboid shown in the image. Is the provided answer of 288 cm² correct?

From the image, the dimensions are:
Length ($l$) = $8 \text{ cm}$
Width ($w$) = $9 \text{ cm}$
Height ($h$) = $4 \text{ cm}$

The surface area $SA$ of a cuboid is given by the formula:

The calculated surface area is $280 \text{ cm}^2$. The provided answer in the image is $288 \text{ cm}^2$. Therefore, the provided answer is incorrect.