Merge pull request #29 from Shiva-Sai-ssb/new-problem

Added a new Problem

Author: devvsakib

L-B/0016 AreaOfTriangle/README.md

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+# Problem 15 (L-B) ~ Area Of Triangle
+
+## Problem
+
+This program takes lengths of three sides and displays area of triangle.
+
+## Solution
+
+```javascript
+const side1 = 5; 
+const side2 = 6; 
+const side3 = 7; 
+const perimeter = (side1 + side2 + side3)/2;
+const area =  Math.sqrt(perimeter*((perimeter-side1)*(perimeter-side2)*(perimeter-side3)));
+console.log(area);
+```
+
+## References
+
+- [w3resource](https://www.w3resource.com/javascript-exercises/javascript-basic-exercise-4.php)
+
+## Problem Added By
+
+- [GitHub](https://github.com/Shiva-Sai-ssb)
+
+## Contributing
+
+ Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
+
+ Please make sure to update tests as appropriate.
+ 

L-B/0016 AreaOfTriangle/areaOfTriangle.js

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+const side1 = 5; 
+const side2 = 6; 
+const side3 = 7; 
+const perimeter = (side1 + side2 + side3)/2;
+const area =  Math.sqrt(perimeter*((perimeter-side1)*(perimeter-side2)*(perimeter-side3)));
+console.log(area);