Figure 1.
Five 3-2-3 arrays with the five sizes of pacmen, with a Kanizsa triangle in the left upper corner; from left to right: Size 1–5.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.