Question : Write a C Program to find area and circumference of circle.

 

Question : Write a C Program to find area and circumference of circle.

/*

Write a C Program to find area and circumference of circle.

Formula:
Area = 3.14 * radius * radius
Circumference = 2 * 3.14 * radius

Program

*/

#include <stdio.h>

int main()

{

               int circle_radius;

                float PI_VALUE=3.14, circle_area, circle_circumf;

               //Ask user to enter the radius of circle

               printf("\nEnter radius of circle: ");

               //Storing the user input into variable circle_radius

               scanf("%d",&circle_radius);

               //Calculate and display Area

               circle_area = PI_VALUE * circle_radius * circle_radius;

               printf("\nArea of circle is: %f ",circle_area);

               //Caluclate and display Circumference

               circle_circumf = 2 * PI_VALUE * circle_radius;

               printf("\nCircumference of circle is: %f ",circle_circumf);

               return (0);

}

OUTPUT :

Enter radius of circle: 2

Area of circle is: 12.560000

Circumference of circle is: 12.560000

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