Write a C program to find the area and circumference of the circle.

#include<stdio.h>

#include<conio.h>

void main()

{

float radius, circumference, area;

clrscr();

printf("Enter the radius of the circle: ");

scanf("%f",&radius);

area=3.142*radius*radius;

circumference=2*3.142*radius;

printf("Area of the circle=%f\nCircumference of the circle=%f\n",area,circumference);

getch();

}

Output:

Enter the radius of the circle: 3

Area of the circle=28.278000

Circumference of the circle=18.851999