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Lelu [443]
4 years ago
7

Use eulers formula to find the missing number.

Mathematics
1 answer:
Luden [163]4 years ago
8 0
The formula states that:

Faces + Vertices - Edges = 2

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

Answer A!
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Answer:

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