/* Write a program to compute the circumference and area of a circle with a given user-input radius*/

#include <stdio.h>
#include <math.h>

int main(void) {
  printf("This program will calculate the circumference and area of a circle from it's radius.\n");

  double radius;
  printf("Please enter a radius: ");
  scanf("%lf", &radius);

  double circumference = 2 * M_PI * radius;
  printf("The circumference of a circle with the radius of %lf is: %lf\n", radius, circumference);

  double area = M_PI * pow(radius, 2);
  printf("The area of a circle with the radius of %lf is: %lf", radius, area);

  return 0;
}