//circleArea.c
//Garrett Haldrup
//Sept 2 2024
//This program will caclulate the area of a circle given a radius given by user
#include <stdio.h>
int main(){
  // display the purpose of the program
  printf("This program will calculate the area of a cricle\n");
  // define the variable: radius and area, both with datatype float
  float radius, area;
  const float PI = 3.14159;
  // input: receive radius from the user (keyboard)
  printf("Please enter the radius of the circle: ");
  scanf("%f", &radius);
  //printf("The radius of the circle is: %f\n", radius);
  // process: Calculate area by using the formula of a circle
  area = PI * radius * radius;
  // output: display the `area` on the screen
  printf("The area of the circle with radius %.2f is: %.2f\n", radius, area); 
  return 0;
}