find the surface area of a regular polygon circumscribed around a pyramid in rust

main.rs
    let n = 5; //number of sides of the polygon
    let r = 6.0; //radius of the circle that circumscribes the polygon
    let h = 10.0; //height of the pyramid
    let theta = 360.0/n as f64; //interior angle of each polygon
    let apothem = r * (theta/2.0).to_radians().cos(); //apothem of the polygon
    let s = (apothem.powi(2) + h.powi(2)).sqrt(); //slant height of the pyramid
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main.rs
    let face_area = 0.5 * s * apothem;
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main.rs
    let surface_area = n as f64 * face_area;
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main.rs
fn main() {
    let n = 5; //number of sides of the polygon
    let r = 6.0; //radius of the circle that circumscribes the polygon
    let h = 10.0; //height of the pyramid
    let theta = 360.0/n as f64; //interior angle of each polygon
    let apothem = r * (theta/2.0).to_radians().cos(); //apothem of the polygon
    let s = (apothem.powi(2) + h.powi(2)).sqrt(); //slant height of the pyramid
    let face_area = 0.5 * s * apothem; //area of each face of the pyramid
    let surface_area = n as f64 * face_area; //total surface area of the pyramid
    println!("Surface Area of the Pyramid: {}", surface_area);
}
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