beccajjryan beccajjryan

09-06-2017
Mathematics

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Mario’s company makes unusually shaped imitation gemstones. One gemstone had 10 faces and 11 vertices. How many edges did the gemstone have?

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mreijepatmat mreijepatmat

09-06-2017

Euler formula: VERTICES + FACES - EDGES = 2

11+10 -E = 2

21-2 = E and E(edges) = 19

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