Octagon Area Calculator

Guide to Using the Octagon Area Calculator

The Octagon Area Calculator is a tool designed to compute various geometric properties of an octagon, such as its area, perimeter, inradius, and circumradius. Below are step-by-step instructions to make the most out of this calculator.

Step 1: Understanding Input Fields

Before beginning calculations, familiarize yourself with the input field:

• Side Length: This field requires you to input the length of one side of the octagon. The following conditions apply:
  • Required: You must enter a value here to proceed with the calculations.
  • Minimum Value: The side length must be at least 0.0001 units long.
  • Step: Any real number can be entered, allowing precision up to any decimal place.

Step 2: Inputting Data

Take the following steps to enter your data into the calculator:

1. Navigate to the “Side Length” input field.
2. Enter the length of one side of the octagon. Ensure the value adheres to the minimum requirement of 0.0001 units.

Step 3: Understanding Result Fields

After inputting the side length, the calculator will provide you with several geometric properties of the octagon. These include:

• Area of Octagon: Calculated as 2 * (1 + sqrt(2)) * pow(sideLength, 2). The result will be displayed with two decimal places and followed by “square units”.
• Perimeter of Octagon: Given by 8 * sideLength, showing the result with two decimal places and the suffix “units”.
• Inradius: The radius of the inscribed circle is calculated as sideLength * (1 + sqrt(2))/2. The outcome appears with two decimal places and the suffix “units”.
• Circumradius: The radius of the circumscribed circle comes from sideLength * sqrt(2 + sqrt(2))/2. It displays with two decimal points and “units”.

Step 4: Review and Interpret Results

Once you’ve entered the side length:

1. Review the calculations displayed in the result fields.
2. Interpret these values based on your needs, especially noting the precise decimal formatting.

With this guide, you’re equipped to effectively use the Octagon Area Calculator to determine important geometric measurements of an octagon.