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#include <stdio.h>
#define PI 3.14159
int main(){
float radius ,aera, circumfrence;
//input radius form the user
printf("Enter the redius of the circle : ");
scanf("%f", &radius);
//calculate area of the circle
aera = PI * radius * radius ;
//calculate circumfrence of the circle
circumfrence = 2 * PI *radius;
//display result
printf("Area of the cycle : %2.f\n",aera);
printf("circumfrence of the circle: %2.f\n", circumfrence);
return 0;
}
Compiling Program...
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