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Using Euler’s formula find the unknown:Faces?520Vertices6?12Edges129? |
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Answer» (i) V + F = E + 2 6 + F = 12 + 2 F = 14 - 6 F = 8 Therefore number of faces are 8 (ii) V + F = E + 2 V + 5 = 9 + 2 V = 11 - 5 V = 6 Therefore number of vertices are 6 (iii) V + F = E + 2 12 + 20 = E + 2 E = 32 - 2 E = 30 Therefore number of edges are 8 |
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