矩形的面积和周长程序

长方形是平面上的平面图形，它有四个边和四个相等的90度角。在矩形中，四个边的长度不像正方形一样，彼此相对的边的长度相等。矩形的两条对角线都有等长。

例子：

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

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

公式：

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

C++

// CPP program to find area
// and perimeter of rectangle
#include
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.

Javascript

 
// 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
 

输出 ：

Area = 30
Perimeter = 22