# Area of a Decagon Calculator - Calculate the Area of a Regular or Irregular Decagon

 Side mmcmdmmkmmiinftyd
 Area of Decagon = mm²acrearehacm²m²km²ft²in²yd²sqmitwp

Please provide a rating, it takes seconds and helps us to keep this resource free for all to use

The Area of a Decagon Calculator is a useful tool for finding the area of a regular or irregular decagon. In this tutorial, we'll show you how to use the calculator and provide you with some examples to help you understand how it works.

## Step 1: Choose the Type of Decagon

The first step is to choose the type of decagon you're working with. You can select either a regular decagon or an irregular decagon using the radio buttons on the calculator.

## Step 2: Enter the Length of the Side of the Decagon

Once you've chosen the type of decagon, enter the length of the side of the decagon into the input box on the calculator. Make sure to enter the value in the correct units.

## Step 3: Calculate the Area of the Decagon

Once you've entered the length of the side of the decagon, click the "Calculate Area" button on the calculator. Our Area of a Decagon Calculator will then display the area of the regular or irregular decagon.

A = (5/4) * s2 * (2 + sqrt(5))

As you can see from the formula above, the area of a regular decagon is calculated by taking the length of the side of the decagon, squaring it, multiplying the result by 5/4, and then multiplying the product by the sum of 2 and the square root of 5. If you're working with an irregular decagon, the formula will be different and more complex.

## Examples

Let's look at some examples to see how the Area of a Decagon Calculator works:

• A regular decagon with a side length of 4 cm has an area of approximately 123.107 square centimeters.
• An irregular decagon with side lengths of 6 cm, 4 cm, 7 cm, 8 cm, 9 cm, 10 cm, 6 cm, 4 cm, 7 cm, and 8 cm has an area of approximately 135.98 square centimeters.
• A regular decagon with a side length of 2 inches has an area of approximately 43.011 square inches.

As you can see from these examples, our Area of a Decagon Calculator can calculate the area of a regular or irregular decagon quickly and accurately.

## Conclusion

The Area of a Decagon Calculator is a valuable tool for finding the area of a regular or irregular decagon. By following the simple steps outlined in this tutorial, you can quickly and accurately calculate the area of a decagon. Whether you're a student studying geometry or a professional in the field of mathematics or engineering, this calculator can help you save time and reduce errors in your calculations. Try it out for yourself and see how easy it can be to calculate the area of a decagon.

## Math Calculators

You may also find the following Math calculators useful.