//https://youtu.be/8dWL3wF_OMw?t=2213
//Calculate hypotenuse on click of Submit-button.
document.getElementById("calcHypotenuseButton").onclick = function() {
    let a = document.getElementById("sideAVal").value;
    let b = document.getElementById("sideBVal").value;
    let c;

    c = Math.sqrt(Math.pow(a,2) + Math.pow(b,2));
    document.getElementById("hypotenuse").innerHTML = "Hypotenuse: " + c;
}