But it is because an 11 sided polgon is called an undecagon
Drawing straight lines must be a step that is included!
just to do time pass & iritate students.
hendecagon
It they weren't equal is wouldn't make a tessellation.
Look around you. How many 11-sided polygons do you see?
There are lots of different types of polygons Polygons are classified into various types based on the number of sides and measures of the angles.: Regular Polygons Irregular Polygons Concave Polygons Convex Polygons Trigons Quadrilateral Polygons Pentagon Polygons Hexagon Polygons Equilateral Polygons Equiangular Polygons
There are 20.5 + 6 + 9 = 20 (Neither circles nor unclosed linear shapes are polygons.)
It is quite acceptable to call them an 11-agon to a 100-agon but what is more important is knowing how to work out their properties.
11 nCr 5 = 462
All polygons and polyhedra.All polygons and polyhedra.All polygons and polyhedra.All polygons and polyhedra.
Hexagon, square, equilateral triangle, octagon. Im 11 so hah
That is because an octagon is singular and polygons is plural. An octagon is a polygon, and octagons are polygons but a octagon cannot be a polygons.