1. The problem is to find the area of a rectangle. 2. The formula for the area $A$ of a rectangle is: $$A = \text{length} \times \text{width}$$ 3. To solve, you need to know the length and width of the rectangle. 4. Multiply the length by the width to get the area. 5. The area is expressed in square units, such as square meters or square centimeters. Example: If length = $5$ and width = $3$, then $$A = 5 \times 3 = 15$$ So, the area of the rectangle is $15$ square units.