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Question

A tetrahedron has 4 vertices and 6 edges. Find the number of faces it has.

A
10
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B
6
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C
4
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D
2
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Solution

The correct option is C 4
Using Euler’s formula for polyhedra,

F + V = E + 2

So, F + 4 = 6 + 2

F = 8 - 4

F = 4

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