To solve the problem from your image, let's calculate the perimeter of the rectangular field.

Given:

• Length $l = 80 \, \text{yd}$
• Width $w = 40 \, \text{yd}$

The formula for the perimeter $P$ of a rectangle is:

$P = 2 \times (l + w)$

Substituting the given values:

$P = 2 \times (80 + 40) = 2 \times 120 = 240 \, \text{yd}$

So, the perimeter of the rectangular field is 240 yards.

It seems like the correct unit is yards (yd), not square yards or cubic yards.

Would you like more details or further explanation?

Here are 5 related questions to expand on the concept:

1. What is the formula for the area of a rectangle?
2. How does the perimeter formula change for a square?
3. If the width is doubled, how does the perimeter change?
4. What is the relationship between perimeter and area in a rectangle?
5. How would you find the perimeter if one of the sides were missing?

Tip: For perimeter calculations, always ensure the units are consistent and match the dimensions you're working with.