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Program to find area and circumference of circle.
#include<stdio.h>
#include<conio.h> void main()
{
int r;
float pi=3.14,area,ci; clrscr();
printf(“enter radius of circle: ”);
scanf(“%d”,&r); area=pi*r*r;
printf(“area of circle=%f ”,area);
ci=2*pi*r;
printf(“circumference=%f ”,ci);
getch();
}
Output:
enter radius of a circle: 5 area of
circle=78.000 circumference=31.4
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