volume of shpere

<input type="number" id="input_radius" placeholder="Enter the radius">

<input type="button" value="Find" id="input_button" >

<script>

 

function calculateVolume(){

    let radius = document.getElementById("input_radius").value;

    let volume = (4/3)* Math.PI * Math.pow(radius, 3);

    alert("The volume of a sphere: "+volume.toFixed(2));

}

    

let button=document.getElementById("input_button");

button.onclick=calculateVolume;

 

</script>