Example: How to Find the Perimeter of a Rectangle in C# Program

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// How to Find the Perimeter of a Rectangle in C# Program
using System;

public class W3CW {
    static public void Main (string[] args) {
        Console.WriteLine("Enter the length & width of the rectangle::\n");
        float l=Convert.ToInt32(Console.ReadLine());
        float w=Convert.ToInt32(Console.ReadLine());
        
        // It will calculate the perimeter of the rectangle
        float p = 2 * (l + w);
        
        // It will print the final output
        Console.WriteLine("The Perimeter of rectangle = "+p+" units");
    }
}