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The question asks to calculate the surface area of a cuboid with the given dimensions:

- Length \( l = 20 \, \text{cm} \)
- Width \( w = 3 \, \text{cm} \)
- Height \( h = 2 \, \text{cm} \)

The formula for the surface area of a cuboid is:

\[
\text{Surface Area} = 2(lw + lh + wh)
\]

Now, substituting the given values:

\[
\text{Surface Area} = 2(20 \times 3 + 20 \times 2 + 3 \times 2)
\]

\[
= 2(60 + 40 + 6)
\]

\[
= 2(106) = 212 \, \text{cm}^2
\]

Thus, the surface area of the cuboid is \( 212 \, \text{cm}^2 \).

Would you like further clarification or details on this solution? Here are 5 related questions to think about:

1. What is the formula for the volume of a cuboid?
2. How would the surface area change if the dimensions were doubled?
3. What is the difference between surface area and lateral surface area?
4. How do you calculate the surface area of a cube?
5. How does the surface area of a cuboid compare to that of a cylinder with similar dimensions?

**Tip:** Always ensure that all dimensions are in the same unit before performing any surface area or volume calculations.

Calculate the surface area of a cuboid with length 20 cm, width 3 cm, and height 2 cm.

Learn how to calculate the surface area of a cuboid with dimensions 20 cm (length), 3 cm (width), and 2 cm (height). This problem covers key geometric concepts and the surface area formula. Suitable for students in Grades 6-8.

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