Question

pls give me correct answer with explanation ​

Answer 1

$\huge\fbox\red{Solution༉}$

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Definition :-

Euler's formula, Either of two important mathematical theorems of Leonhard Euler. ... It is written F + V = E + 2, where F is the number of faces, V the number of vertices, and E the number of edges. A cube, for example, has 6 faces, 8 vertices, and 12 edges, and satisfies this formula.

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1) 6 + v + = 12 + 2

= 6 + v = 14

= v = 14 - 6

= v = 8

2) F + 5 = 9 + 2

= F + 5 = 11

= F = 11 - 5

= F = 6

3) 12 + 20 = E + 2

= 32 = E + 2

= E = 32 - 2

= E = 30

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$\huge\colorbox{pink}{Thank you ❤}$

Answer 2

➠ Solution

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1) 6 + v + = 12 + 2

$\bf\red{{= 6 + v = 14}}$

$\bf\red{{= v = 14 - 6}}$

$\bf\red{{= v = 8}}$

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2) F + 5 = 9 + 2

$\bf\pink{{= F + 5 = 11}}$

$\bf\pink{{= F = 11 - 5}}$

$\bf\pink{{= F = 6}}$

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3) 12 + 20 = E + 2

$\bf\green{{= 32 = E + 2}}$

$\bf\green{{= E = 32 - 2}}$

$\bf\green{{= E = 30}}$

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