Untitled

<!DOCTYPE html>
<html>
<body>

A:<br>
<input type="number" id="aa">
<br>
B:<br>
<input type="number" id="bb">
<br>
G:<br>
<input type="number" id="gg">
<br><br>

<button onclick="myFunction()">Click me</button>

<p id="demo"></p>

<script>
function myFunction() {
	var a =document.getElementById("aa").value;
    var b =document.getElementById("bb").value;
    var g =document.getElementById("gg").value;

    result=a/((Math.sqrt(3))*b*g);
    document.getElementById("demo").innerHTML = result;
}
</script>


</body>
</html>