Thank you for the opportunity to help you with your question!
The word 'circumscribe' means, essentially, to surround. In this case, we are talking about surrounding all three vertices. It is simple to do if all sides are equal, not so easy if they are not. Anyway, the crcle must touch all three vertices.
Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 5th, 2015
Did you know? You can earn $20 for every friend you invite to Studypool!