Sum

Using Euler’s formula, find V if E = 30, F = 12.

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#### Solution

E = 30, F = 12

Euler’s formula:

F + V = E + 2

∴ 12 + V = 30 + 2

∴ 12 + V = 32

∴ V = 32 – 12 = 20

Concept: Euler's Formula

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