Mario`s company makes unusually shaped imitation gemstones. One gemstone had 12 faces and 10 vertices. How many edges did the gemstone have?
A) 23 B) 22 C) 25 D) 20
I'm not sure about the answer but you could try drawing it how it describes it. It may help you picture it better. Sorry I couldn't be any more help but that's what I would try