MATH CALCULATOR
Octagon Calculator
Calculate the area, perimeter, and angles of an octagon with ease.
What is the Octagon Calculator & How does it work?
An octagon is a polygon with eight sides. The properties of an octagon can be calculated using specific formulas based on its side length.The perimeter of an octagon is simply the sum of its eight sides, which can be calculated as Perimeter = 8s.Each interior angle of a regular octagon measures 135 degrees. The formula for each exterior angle is Exterior Angle = 45 degrees.
Area = 2(1 + sqrt{2})s^2
s = side length
Parameters
Result—
Frequently Asked Questions
How do I calculate the area of a regular octagon?
To find the area of a regular octagon, use the formula: Area = 2(1 + √2)s², where s is the side length.
What is the perimeter of an octagon?
The perimeter of an octagon is calculated by multiplying the side length by 8. Perimeter = 8s.
How many degrees are in each interior angle of a regular octagon?
Each interior angle of a regular octagon measures 135 degrees.
What is the measure of an exterior angle of a regular octagon?
Each exterior angle of a regular octagon measures 45 degrees.
Can you explain how to use this Octagon Calculator?
Enter the side length of your octagon into the calculator, and it will compute the area, perimeter, and angles for you.
Is there a difference between regular and irregular octagons?
Yes, in a regular octagon all sides and angles are equal. In an irregular octagon, sides and angles can vary.
How do I calculate the side length of an octagon if I know the area?
To find the side length from the area, rearrange the formula: s = √(Area / [2(1 + √2)])
Results are for informational purposes only and do not constitute professional advice.