C Lang: Program in C to calculate Area of Circle when Radius is input from user.

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#include<stdio.h>

#include<conio.h>

void main()

{

int R;

float Pi=3.14, Area;

printf("Enter Radius =");

scanf("%d",&R);

Area=Pi*R*R;

printf("Area is %d",Area);

getch();

}

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