Circle area and circumference program with HTML, javascript & jQuery
818
Demo
Code
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js">
</script>
<script>
$(document).ready(function() {
//Area
$("#area").click(function() {
var a = $("#radius").val();
$("#result").val((22 / 7) * (+a) * (+a));
});
//Circumference
$("#circumference").click(function() {
var a = $("#radius").val();
$("#result").val((2) * (22 / 7) * (+a));
});
});
</script>
</head>
<body>
<div>
Enter radius value:
<input type="text" id="radius"> <br><br>
<button type="button" id="area"> Area </button>
<button type="button" id="circumference"> Circumference </button> <br><br><br> Result:
<input type="text" id="result">
</div>
</body>
</html>