# What is the formula for the surface area of a rectangular prism?

A rectangular prism is a six-faced solid, 3-dimensional object.

## Answer: The surface area of the rectangular prism is lw + lw + wh + wh + lh + lh.

Go through the steps to understand the formula in detail.

**Explanation:**

A rectangular prism is a solid, 3- dimensional object, with 6 rectangular faces in it.

Examples:

- School notebooks, and binders, laptops, fish tanks, etc.
- Large structures such as buildings, storage sheds, and cargo tanks.

Surface Area of a Rectangular Prism = sum of the surface area of six faces = lw + lw + wh + wh + lh + lh

Here, l = length , w = width, h = height of the rectangular prism.

"Add the image"

### Thus, the surface area of the rectangular prism is lw + lw + wh + wh + lh + lh.