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WAP- A point on the circumference of a circle whose center is (0,0) is (4,5). Write a program to computer perimeter and area of the circle.

`//E Balagurusamy, Programming In ANSI C,4E`

//Exercise 1.12, page 22

#include <stdio.h>

#include <math.h>

#include <conio.h>

//single-point control,

//as suggested by Code Complete 2

#define center_x 0

#define center_y 0

#define point_on_circle_x 4

#define point_on_circle_y 5

#define PI 3.14

int main(void)

{float radius=0.0, term1=0, term2=0;

`printf("nn");`

term1= (point_on_circle_x - center_x) * (point_on_circle_x - center_x);

term2= (point_on_circle_y - center_y) * (point_on_circle_y - center_y);

radius=sqrt(term1 + term2);

printf("Perimiter : %fn",2*PI*radius);

printf("Area : %f",PI*radius*radius);

getch();

return 0;

}

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