We are given the area of a rectangle and one of its side lengths. The goal is to find the missing length, $p$.

Given:

• One side length = $4$ ft

• Area = $20$ ft²

• Formula for the area of a rectangle:

  $\text{Area} = \text{length} \times \text{width}$

Solving for $p$:

$4 \times p = 20$

$p = \frac{20}{4} = 5 \text{ ft}$

Answer:

$p = 5 \text{ ft}$

Would you like a step-by-step breakdown or have any questions? 😊

---

Related Questions:

1. How do you find the perimeter of this rectangle?
2. What would be the missing length if the area was 32 ft² instead?
3. If the rectangle's length is doubled, what happens to the area?
4. What is the formula for finding the diagonal of a rectangle?
5. How can you determine the area of a rectangle when only the perimeter is given?

Tip:

Always double-check your calculations by multiplying back to ensure the given area is correct! ✅