This work illustrates and describes 11 parts of a trapezoid: sides, angles, vertexes, base, perimeter, area, altitudes, and diagonal, isosceles trapezoid, scalene trapezoid, right-angled trapezoid.
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.