1. **State the problem:** We are given a rectangle with an area of 160 square feet and two sides measuring 20 feet each. We need to find the length of the other two sides. 2. **Recall the formula for the area of a rectangle:** $$\text{Area} = \text{length} \times \text{width}$$ 3. **Assign known values:** Let the unknown side length be $x$ feet. Given one side is 20 feet, the area is 160 square feet, so: $$20 \times x = 160$$ 4. **Solve for $x$:** Divide both sides by 20: $$\cancel{20} \times x = \frac{160}{\cancel{20}}$$ $$x = 8$$ 5. **Interpretation:** The other two sides of the rectangle are each 8 feet long. **Final answer:** The other two sides are 8 feet each.