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  1. #include <stdio.h>
  2.  
  3. int main(void)
  4. {
  5. float R;
  6. printf("Enter the radius :");
  7. scanf("%f", &R);
  8. float Area, Circumference;
  9. Circumference = 2*3.14*R;
  10. Area = 3.14*R*R;
  11. printf("Circumference is:%.2f\n",Circumference );
  12. printf("Area is :%.2f", Area);
  13. return 0;
  14. }
Success #stdin #stdout 0s 5300KB
stdin
15
stdout
Enter the radius :Circumference is:94.20
Area is :706.50