text: #include <stdio.h>
  
  #define PI 3.14159
  
  int main () {
  
  	float radius, area; /* Radius is in Meters */
  	
  	printf("Radius = ? meters \n");
  	scanf("%f", &radius);
  	area = PI * radius * radius;
  	printf("Area of the circle is = %f squareMeters\n", area);
  
  
  	return 0;
  }
  
  	
  