The problem requires us to describe how a student would create a program to calculate the perimeter of a rectangle. We need to analyze the solution space. This involves defining the inputs needed, the formula used, and the output.

1. Problem Description

The problem requires us to describe how a student would create a program to calculate the perimeter of a rectangle. We need to analyze the solution space. This involves defining the inputs needed, the formula used, and the output.

2. Solution Steps

To create a program to find the perimeter of a rectangle, the program needs to accept two inputs: the length ($l$) and the width ($w$) of the rectangle.

The perimeter ($P$) of a rectangle is given by the formula:

$P = 2 * (l + w)$

The program should then compute the perimeter using this formula and output the result.

The solution space is the set of all possible length and width values for which the program can provide a valid perimeter. Assuming the length and width can be any positive real number, the solution space consists of all positive real number pairs $(l, w)$.

3. Final Answer

The program should take the length $l$ and width $w$ of the rectangle as inputs. It should then calculate the perimeter $P$ using the formula $P = 2 * (l + w)$. Finally, the program should output the calculated perimeter $P$. The solution space consists of all positive real number pairs $(l, w)$.