From, well, the tail of an ox. It couldn't be any simpler. Quora probably will tell me this will collapse because it's too short, so: it's very common in Brazil's countryside. It's fat (too fat for me, not my favourite food), but healthy.
We can divide octagon into six triangles. So, the sum of the angles of each triangle is 180 degrees. For octagon, the sum of the interior angles is 1080 degrees and there are eight sides. Let us make a circle in the middle of the octagon and measure the central angle of a regular octagon. A circle is 360 degrees around.
So all you have to do to get the area of the octagon is to calculate the area of the square and then subtract the four corner triangles. Piece oâ cake. But first, here are two great tips for this and other problems. For problems involving regular octagons, 45Â°- 45Â°- 90Â° triangles can come in handy.