find the volume of a regular polygon inscribed in a cylinder in rust

main.rs
use std::f64::consts::PI;

fn main() {
    let side_length = 6.0;
    let num_sides = 8.0;
    let radius = 10.0;

    let polygon_area = (num_sides * side_length.powi(2)) / (4.0 * (PI / num_sides).tan());
    let apothem = side_length / (2.0 * (PI / num_sides).tan());
    let height = radius - apothem;
    let cylinder_volume = PI * radius.powi(2) * height;

    println!("The volume of the inscribed polygon in the cylinder is {} cubic units.", cylinder_volume);
}
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main.rs
The volume of the inscribed polygon in the cylinder is 877.2980633371456 cubic units.
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