text: #include <iostream>
  
  // 1.) User-Input: side length of a square
  // 2.) Compute the perimeter and area of a square.
  // 3.) Print out the values to the console.
  
  int main()
  {
      double a;
      std::cout << "Please enter the value of a: ";
      std::cin >> a;
  
      double perimeter = 4 * a;
      double area = a * a;
  
      std::cout << "The perimeter is: " << perimeter << std::endl;
      std::cout << "The area is: " << area << std::endl;
  
      return 0;
  }
  