the number of edges of a solid shape if it has 20 faces and36 vertices
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Use the Euler formula.
Which is, F + V = E + 2
Where, F is the number of faces, V is the number of vertices and E is the number of edges.
According to the question:
F = 20
V = 36
Hence, 20+36=E+2
=>56-2=E => E = 54
Number of edges: 54
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