davidchristophe davidchristophe

25-05-2018
Mathematics

contestada

A solid has 16 faces and 14 vertices. How many edges does the solid have? A. 14 edges B. 18 edges C. 20 edges D. 28 edges

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musiclover10045 musiclover10045

25-05-2018

The formula to use is F +V -E = 2

F = Faces = 16
V = Vertices = 14
E = edges = Unknown

We can fill in the information we have and solve for edges:

16 + 14 - E = 2

Add 16 and 14:

30 - E = 2

E = 30-2

E = 28

There are 28 edges

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