What is the perimeter of a rectangle with length 8 and width 5?

To determine the perimeter of a rectangle, you use the formula:

Perimeter = 2 × (length + width).

In this case, the length of the rectangle is 8 and the width is 5.

First, add the length and width together:

8 + 5 = 13.

Next, multiply the sum by 2 to find the perimeter:

2 × 13 = 26.

Thus, the perimeter of the rectangle is 26. This is the correct answer because it follows the standard formula used for calculating the perimeter of a rectangle, ensuring that both the length and width are appropriately considered.