# Javascript program to enter length and breadth of a rectangle and find its perimeter

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Javascript program to enter the length and breadth of a rectangle and find its perimeter. There are you will learn how to find the perimeter of a rectangle in javascript language.

**Formula:**

*P = 2(l + w)*

**where:**

`P`

= perimeter

`l`

= length of the rectangle

`w`

= width of the rectangle

Let us understand this through Javascript program:

```
<script type="text/javascript">
/*
Javascript program to find the perimeter of a rectangle
*/
var l, w, p;
l = 5;
w = 9;
/* Calculate perimeter of rectangle */
p = 2 * (l + w);
document.write("The Perimeter of rectangle = " + p + " units");
</script>
```

**Output Screen:**

The Perimeter of rectangle = 28 units