Write a program to calculate the area of a circle and display the result. Use the formula: A=?r2 where Pi (?) is approximately e

Algorithm:

Input Enter the radius (r)

Process Compute the Area (A=Pi*r*r)

Output Display the Area (A)

Solution:

#include

#include

void main ( )

{

int r;

flaot A, Pi = 3.1416;

clrscr ( );

printf (“\n Enter the radius:”);

scanf (“%d”, &r);

A=Pi* r * r;

printf (“\n The area: %f”,A);

getch ( );

}