When Perimeter equals Area (VIDEO!)
The 3×6 rectangle has the property that its area has the same numeric value as its perimeter. (They are both 18). A circle of radius 2 has this property, as does the 6-8-10 right triangle.
In this video we explore – briefly – the question of when area equals perimeter. A fuller discussion takes place in the written essay “Integer Triangles” available on this website.