Find Area And Circle Program In C

#include<stdio.h>

#include<conio.h>

void main()

{

float r,a;

clrscr();

printf("enter radisus");

scanf("%f",&r);

a=3.14*r*r;

printf("area=%f",a);

getch();

}

Output:-

Enter radius

9

Area=254.33996

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