Octagon Has How Many Sides And Corners. All sides of a regular octagon are the same length. First, have a play with an octagon:
An octagon is a polygon that has eight sides. An octadecagon has 18 sides and 18 angles! If it is a regular pentagon, all its sides are of equal length.
When all angles are equal and all sides are equal it is regular, otherwise it is irregular
How many sides does a pentagon has. Regular polygons like an octagon have the same number of corners as they do sides, so an octagon would have. The amount of space a regular octagon takes up is [math]\text{area} = 2(1+\sqrt{2})a^2.[/math] a is the length of one of its sides. Its schläfli symbol is {10} and can also be constructed as a truncated pentagon, t{5}, a quasiregular decagon alternating two types of edges.
