Write a program that prompts the user for the radius of a sphere and prints its volume

Question

Im not getting correct answer with the following code below. Can anyone debug this code? When I input radius = 5, the answer I get is 500.000000 whereas the original answer should be 523.80952. Can anyone please explain what's wrong here?

Sphere volume formula =4/3(π x r^3)

#include <stdio.h>

int main()


    {
    float radius = 0;
    float volume;
    float pie = 0;

    printf("Enter radius");
    scanf("%f", &radius);

    pie = 22 / 7;

    volume = (4*pie*radius*radius*radius)/3;
    printf("the volume is %f", volume);

    return 0;
    }

Answer 1

You can also write pie = 3.14 ; instead of pie = 22 / 7 ;

And keep in mind that: (a) Arithmetic operation between two integers always returns an integer. (b) Arithmetic operation between two real numbers always returns a real number. (c) Arithmetic operation between an integer and a real number returns a real number.

So, pie = 22 / 7 will return 500.000000 instead of 523.80952. therefore you can also write pie = 22.0 / 7 or pie = 22 / 7.0 or pie = 22.0 / 7.0. These three will return the original answer.