平行四边形程序

给定平行四边形的边，然后计算周长。
例子 ：

Input: a = 10, b = 8
Output: 36.00

Input: a = 25.12, b = 20.4
Output: 91.04

平行四边形的相对边长度相等且平行。角度成对相等，但不一定成90度。平行四边形的周长可以计算为两个相邻边的总和，每个边均乘以2。

Formula used to calculate circumference of a Parallelogram: 
(2*a)+(2*b)

C++

// C Program to calculate the
// Circumference of a Parallelogram.
#include 
 
float circumferenceparallelogram(float a, float b)
{
    return ((2 * a) + (2 * b));
}
 
int main()
{
    float a = 10, b = 8;
    printf("Circumference of a given Parallelogram is : %.2f",
           circumferenceparallelogram(a, b));
    return 0;
}

Java

// Java Program To Calculate
// Circumference of a Parallelogram
import java.io.*;
 
class GFG
{
    static float circumferenceparallelogram(float a, float b)
    {
    return ((2 * a) + (2 * b));
    }
 
    // Driver code
    public static void main(String arg[])
    {
        float a = 10, b = 8;
        System.out.print("Circumference of a given Parallelogram is :");
        System.out.println(circumferenceparallelogram(a, b));
    }
}
 
// This code is contributed by Anant Agarwal.

Python3

# Python3 Program to calculate the
# Circumference of a Parallelogram
 
# Utility Function
def circumferenceparallelogram(a,b):
    return ((2 * a) + (2 * b))
 
# Driver Function
a = 10
b = 8
 
print("Circumference of a given Parallelogram is :",
         round(circumferenceparallelogram(a, b),4))
 
# This code is contributed
# by Azkia Anam.

C#

// C# Program To Calculate
// Circumference of a Parallelogram
using System;
 
class GFG
{
    static float circumferenceparallelogram(float a,
                                            float b)
    {
    return ((2 * a) + (2 * b));
    }
 
    // Driver code
    public static void Main()
    {
        float a = 10, b = 8;
        Console.Write("Circumference of a" +
                       "given Parallelogram is :");
                        
        Console.Write(circumferenceparallelogram(a, b));
    }
}
 
// This code is contributed by vt_m.

Javascript

 
// Javascript Program to calculate the
// Circumference of a Parallelogram.
function circumferenceparallelogram(a, b)
{
    return ((2 * a) + (2 * b));
}
  
 // Driver code
let a = 10, b = 8;
document.write("Circumference of a given Parallelogram is : ",
        circumferenceparallelogram(a, b));
 
// This code is contributed by Manoj
 

输出 ：

Circumference of a given parallelogram is : 36.00