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Calculation: divide, product and PI

Calculation: divide, product and PI

/* calculations on a table */

#include <stdio.h>

void main()
{
   float r = 0.0f;              /* The radius of the table        */
   float d = 4.0f;              /* The diameter of the table      */
   float c = 0.0f;              /* The circumference of the table */
   float area = 0.0f;           /* The area of a circle           */
   float Pi = 3.14159265f; 


   r = d/2.0f;           /* Calculate the radius                */
   c = 2.0f*Pi*r;        /* Calculate the circumference         */
   area = Pi*r*r;           /* Calculate the area                 */
   printf("\nThe circumference is %.2f", c);  
   printf("\nThe area is %.2f\n", area);  
}

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