This content is licensed under Creative Commons Attribution/Share-Alike License 3.0 (Unported). That means you may freely redistribute or modify this content under the same license conditions and must attribute the original author by placing a hyperlink from your site to this work https://planetcalc.com/2804/. Also, please do not modify any references to the original work (if any) contained in this content.
Users of Planetcalc are persistently asking us to create a calculator for an area of irregular quadrangles for which the only lengths of the sides are known. So, I've decided to make this joke calculator(Press "pause" button to calculate a quadrangle area with given sides which you liked most.
The area of an irregular quadrangle cannot be calculated with the length of the sides only. I hope this demonstration will help those who asked about the calculator to understand this.