Octagon Side Length Calculator From Diameter. Use it to calculate your gazebo layout. Area of an octagon = \(2a^{2}(1+\sqrt{2})\) formula for perimeter of an octagon:
The calculator tool is loading. The formula for perimeter of an octagon is given by: Where a is the length of one side of the octagon.
From there, you can determine the area of the large square by squaring it \(a^2(3+2\sqrt{2})\).
This proves to be of the utmost importance when we talk about the popularity of the hexagon shape in nature. The hypotenuse is your radius, your opposite is half of the length of the octagon side. It has eight lines of reflective symmetry and rotational symmetry of order 8. D = s + 2x.