A program to compute the perimeter and area of a circle with a given radius.

Here, we have a basic program example to calculate the perimeter and area of a circle using different languages. This program is created in c language, c++, Java, and Python.

Program to calculate perimeter and radius of circle in C language

#include <stdio.h>
int main() {
   int radius;
   float area, perimeter;
   printf("Enter the radius : ");
   scanf("%d",radius);

   perimeter = 2*3.14*radius;
   printf("Perimeter of the Circle = %f inches\n", perimeter);

	area = 3.14*radius*radius;
	printf("Area of the Circle = %f square inches\n", area);

return(0);
}

Program to calculate perimeter and radius of circle in C++ language

#include<iostream>
#include<stdlib.h>
#include<cmath>
using namespace std;
int main()
{
	double r,area,perimeter;
	cout<<"Input Radius : ";
	cin>>r;
	area=M_PI*r*r;
	perimeter=2*M_PI*r;
	cout<<"Area of Circle : "<< area<<endl;
	cout<<"Perimeter of Circle : "<<perimeter;
}

Program to calculate perimeter and radius of circle in Python language

PI = 3.14
R = float(input("Enter radius of the circle: "))
area = (PI*R*R)
perimeter = (2*PI*R)
print("The area of circle is", area)
print("The perimeter of circle is", perimeter)

Program to calculate perimeter and radius of circle in Java language

import java.util.Scanner;
public class circle
{
    public static void main(String[] args)
    {
        int r;
        double pi = 3.14, area, parameter;
        Scanner s = new Scanner(System.in);
        System.out.print("Enter radius of circle: ");
        r = s.nextInt();
        area = pi * r * r;
        System.out.println("Area of circle: "+area);
        parameter = pi * r * 2;
	System.out.println("Perimeter of circle is: "+parameter);
}            
}