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/*********************************************************************************
Statement - Find the area of a circl, given the radius
Programmer - Vineet Choudhary
Written For - https://turboc.codeplex.com
*********************************************************************************/
#include <stdio.h>
#include <conio.h>
#include <math.h>
#define PI 3.142
void main()
{
float radius, area;
clrscr();
printf("Enter the radius of a circle\n");
scanf ("%f", &radius);
area = PI * pow (radius,2);
printf ("Area of a circle = %5.2f\n", area);
getch();
}

/*-----------------------------
Output
RUN1

Enter the radius of a circle
3.2
Area of a circle = 32.17

RUN 2
Enter the radius of a circle
6
Area of a circle = 113.11
------------------------------*/

Last edited Nov 27, 2015 at 12:07 PM by vineetchoudhary, version 1