JavaScript Math property: PI
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The PI property (of the Math object)
returns 
(the ratio of a
circle’s circumference to its diameter).
It
has the following syntax:
Math.PI
EXAMPLE:
HTML USED IN THIS EXAMPLE:
<!DOCTYPE html>
<html> <!-- Copyright (c) Nematrian Limited 2018 -->
<head>
<style>
table,th,tr,td {border: 1px solid black; border-collapse: collapse;}
</style>
</head>
<body>
<table>
<tr>
<th>Example</th>
<th>Resulting value of <code>x</code></th>
</tr>
<tr>
<td><code id="Example"></code></td>
<td><code id="Result"></code></td>
</tr>
</table>
<script>
document.getElementById("Example").innerHTML =
'var x = Math.PI;';
document.getElementById("Result").innerHTML = Math.PI;
</script>
</body>
</html>
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