Questions: Given sphereRadius, compute the volume of a sphere and assign spherevolume with the result using point division, instead of (4 / 3) which performs integer division. Volume of sphere =(4.0 / 3.0) π r^3 (Hint: r^3 can be computed using *. Use the constant MPI for the value of pi.)

Solution Steps

The code includes the necessary libraries for input/output operations, mathematical functions, and formatting:

#include <iostream>
#include <iomanip>
#include <cmath>

Declare the variables sphereVolume and sphereRadius as double to store the volume and radius of the sphere, respectively:

double sphereVolume;
double sphereRadius;

Read the radius of the sphere from the user:

cin >> sphereRadius;

Use the formula for the volume of a sphere \( V = \frac{4.0}{3.0} \pi r^3 \) to compute the volume and assign it to sphereVolume:

sphereVolume = (4.0 / 3.0) * M_PI * pow(sphereRadius, 3);

Output the volume of the sphere with a fixed precision of 2 decimal places:

cout << fixed << setprecision(2) << sphereVolume << endl;

Final Answer

#include <iostream>
#include <iomanip>
#include <cmath>

using namespace std;

int main() {
    double sphereVolume;
    double sphereRadius;

    cin >> sphereRadius;

    sphereVolume = (4.0 / 3.0) * M_PI * pow(sphereRadius, 3);

    cout << fixed << setprecision(2) << sphereVolume << endl;

    return 0;
}