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Euler's Polyhedral Formula

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Let $P$ be any convex polyhedron, and let $V$ , $E$ and $F$ denote the number of vertices, edges, and faces, respectively. Then $V-E+F=2$ .

Observe!

Apply Euler's Polyhedral Formula on the following polyhedra:

$\begin{tabular}{|c|c|c|c|}\hline Shape & Vertices & Edges & Faces\\ \hline Tetrahedron &4 &6 & 4 \\ ...$

See Also

Euler characteristic

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