Program for Area And Perimeter Of Rectangle

A rectangle is a flat figure in a plane. It has four sides and four equal angles of 90 degree each. In rectangle all four sides are not of equal length like square, sides opposite to each other have equal length. Both diagonals of the rectangle have equal length.

Examples:  

Input : 4 5
Output : Area = 20
         Perimeter = 18

Input : 2 3
Output : Area = 6
         Perimeter = 10

Formulae :

Area of rectangle : a*b 
Perimeter of rectangle: 2*(a + b) 

C++

// CPP program to find area
// and perimeter of rectangle
#include<bits/stdc++.h>
using namespace std;

// Utility function
int areaRectangle(int a, int b)
{
   int area = a * b;
   return area;
}

int perimeterRectangle(int a, int b)
{
   int perimeter = 2*(a + b);
   return perimeter;
}

// Driver program
int main()
{
  int a = 5;
  int b = 6;
  cout << "Area = " << areaRectangle(a, b) << endl;
  cout << "Perimeter = " << perimeterRectangle(a, b);
  return 0;
}

Java

// Java program to find area
// and perimeter of rectangle
import java.io.*;

class Geometry {

    // Utility function
    static int areaRectangle(int a, int b)
    {
       int area = a * b;
       return area;
    }

    static int perimeterRectangle(int a, int b)
    {
       int perimeter = 2*(a + b);
       return perimeter;
    }

    // Driver Function
    public static void main (String[] args) {

        int a = 5;
        int b = 6;
        System.out.println("Area = "+ areaRectangle(a, b));
        System.out.println("Perimeter = "+ perimeterRectangle(a, b));

    }
}

// This code is contributed by Chinmoy Lenka

Python3

# Python3 code to find area
# and perimeter of rectangle

# Utility function
def areaRectangle(a, b):
    return (a * b)

def perimeterRectangle(a, b):
    return (2 * (a + b))

# Driver function
a = 5;
b = 6;
print ("Area = ", areaRectangle(a, b))
print ("Perimeter = ", perimeterRectangle(a, b))

# This code is contributed by 'saloni1297'.

C#

// C# program to find area
// and perimeter of rectangle
using System;

class GFG {

    // Utility function
    static int areaRectangle(int a, int b)
    {
        int area = a * b;
        return area;
    }

    static int perimeterRectangle(int a, int b)
    {
        int perimeter = 2 * (a + b);
        return perimeter;
    }

    // Driver Function
    public static void Main()
    {

        int a = 5;
        int b = 6;

        Console.WriteLine("Area = "
                      + areaRectangle(a, b));
        Console.WriteLine("Perimeter = "
                 + perimeterRectangle(a, b));
    }
}

// This code is contributed by vt_m.

PHP

<?php
// PHP program to find area
// and perimeter of rectangle

// Utility function
function areaRectangle( $a, $b)
{
    $area = $a * $b;
    return $area;
}

function perimeterRectangle( $a, $b)
{
    $perimeter = 2 * ($a + $b);
    return $perimeter;
}

// Driver program
$a = 5;
$b = 6;
echo("Area = " );
echo(areaRectangle($a, $b));
echo("\n");
echo( "Perimeter = ");
echo(perimeterRectangle($a, $b));

// This code is contributed by vt_m.
?>

Javascript

<script>

// Javascript program to find area
// and perimeter of rectangle

// Utility function
function areaRectangle(a, b)
{
    let area = a * b;
    return area;
}

function perimeterRectangle(a, b)
{
    let perimeter = 2*(a + b);
    return perimeter;
}

// Driver program

let a = 5;
let b = 6;
document.write("Area = " + areaRectangle(a, b) + "<br>");
document.write("Perimeter = " + perimeterRectangle(a, b));

// This code is contributed by Manoj

</script>

Output : 

Area = 30
Perimeter = 22

Time complexity : O(1) 
Auxiliary Space : O(1)

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