OCTAGON

• An octagon is a polygon with eight sides.
• A regular octagon is am octagon whose sides are all the same length and all the internal angles are the same size.
• Each of the internal angles at each vertex of a regular octagon is 135°.
• The sum of the internal angles measures to 1080°.

Click the image to the right to discover the formulas to find the area of a regular octagon.