Phrase because it is saying a state
Give an introductory but also use something catchy. personally, I'd says something like "My name is _____. it's an interesting name that you don't hear often. _____ means.." and so on.
Answer:
Convex = outward, Concave = inward
Explanation:
Concave is like a cave in that it goes inward, and convex is just not concave
