Question

-------Using Euler's formula find the unknown.
F = 30, V =10, E=?​

Answer 1

Answer:

20

Step-by-step explanation:

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Answer 2

Answer:

$f + v - e = 2 \\ = 30 + 10 - e = 2 \\ = 40 - e = 2 \\ e = 2 + 40 = 42 \\ so \: edge \: is \: 42$

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Step-by-step explanation:

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