Program to find area of circle in c language.

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#include<stdio.h>

#include<conio.h>

void main()

{

 float r,area;

 clrscr();

 printf("enter the radius of circle=");

 scanf("%f",&r);

 area=(3.14*r*r);

 printf("the area of circle is =%f",area);

 getch();

 }


■) Output->



 

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