This work illustrates and describes 16 parts of a polygon: irregular polygon, equilateral polygon, equiangular polygon, regular polygon, equilateral triangle, square, sides, angles, vertexes, base, perimeter, area, diagonals, center, radius, apothem.
There are two styles of books included. Style one is approx. 3¾" x 5", style two is approx. 5½” x 5½“ and requires little preparation.This file is in PDF format.