When I look at this context clues worksheet on the noun pentagon I see that I tried to write a worksheet that dealt with this noun both as a geometric shape and the headquarters of the United States military. I’m not sure it succeeds on either score, but it’s easily revised if you need to use it.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.