Shape 

Copyright David & Cynthia Thomas, 2009

Perimeter & Area of Polygons--Directed Activity: Lattice Polygons

Focus

Areas of lattice polygons

Technologies

Paper & pencil

Background

In the lattice polygons shown in Figure 3.16, each vertex has integer coordinates relative to the lattice’s coordinate system.  Each cell of the lattice is defined to have an area of one square unit.

Figure 3.16: Area by Lattice Techniques

Tasks

Determine the area of each polygon using the lattice to facilitate computation.