Respuesta :

tonb
The formula states that:

Faces + Vertices - Edges = 2

So 21 + V - 49 = 2 => V = 2+49-21 = 30

Answer A!
netlarue98

Answer:

30

Step-by-step explanation:

Euler's Formula: F(aces) + V(ertices) = E(dges) + 2 or F + V = E + 2

21 + V = 49 + 2

21 + V = 51 Subtract 21 from both sides.

V = 30

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