Rectangle area calculation by perimeter

Rectangle area calculation with known perimeter and aspect ratio

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Created: 2015-11-20 18:45:32, Last updated: 2021-02-24 12:03:52
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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/4351/. Also, please do not modify any references to the original work (if any) contained in this content.

I must admit that when I saw the request on the calculator creation/2658/, which sounded like "calculate area by perimeter". I was a little surprised because it looked somewhat surreal.

Although, after some search on the Internet, I realized that the request just not complete, and often goes like this: "Calculate the area of a rectangle if its perimeter is equal to X and it is known that ..." - and there are different things that may be known. These things lead us to a solution—for example, the length of one of the sides or the aspect ratio. The calculator below calculates the rectangle area, depending on what else is known apart from the perimeter. I dedicate it to all students.

PLANETCALC, Rectangle area calculation by perimeter

Rectangle area calculation by perimeter

Digits after the decimal point: 2
Length of the short side
 
Length of the long side
 
Area
 

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PLANETCALC, Rectangle area calculation by perimeter

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