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In a polyhedron , it the number of vertices is 10 less than its number of edges and the number of faces is 8 less than the number of its vertices, then find its number of faces, edges and vertices. Pls pls answer it ......... |
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Answer» -step explanation:let take no. of EDGES =XTHEN no. of vertices=x-10also no. of faces=x-10-8=x-18so, ACCORDING to eular formula,e+2=f+vx+2=x-18+x-10x+2=2x-28x=30so the no. of edges=30no. of vertices=30-10=20no. of faces=20-8=12I HOPE it helps |
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