The sentence can be translated into the following formula for the surface area (SA) of a rectangular prism:

$SA = 2(w \cdot h + \ell \cdot w + \ell \cdot h)$

Where:

• $SA$ is the surface area
• $w$ is the width
• $h$ is the height
• $\ell$ is the length

This formula accounts for the fact that a rectangular prism has six faces, with three pairs of opposite faces having equal areas.

Would you like more details or have any questions?

Here are 5 related questions:

1. How do you derive the surface area of a rectangular prism step by step?
2. How does the surface area formula change for a cube?
3. What is the surface area if $w = 3$, $h = 4$, and $\ell = 5$?
4. How does the formula for surface area differ from the formula for volume?
5. Can you express the surface area formula for a cylinder?

Tip: When calculating surface area, always remember to multiply the areas of each pair of faces by 2 since each pair occurs twice in the shape.