How do you write a C program to find the volume of a cylinder?

Answer 1

#include

#include

#define pi=3.141593

void main()

{

float r,h,a;

clrscr();

printf("Enter the radius:\t");

scanf("%f",&r);

printf("\nEnter the hight:\t");

scanf("%f",&h);

a=pi*r*r*h;

printf("\n The area of cylinder is: %f",a);

getch();

}

Answer 2

#include<math.h> // for atan() function

long double volume_of_cylinder (long double, long double);

long double area_of_circle (long double);

long double volume_of_cylinder (long double radius, long double height) {

return area_of_circle (radius) * height;

}

long double area_of_circle (long double radius) {

const long double pi = atan(1) * 4;

return pi * radius * radius;

}