A solid has 20 faces and 12 vertices.Find the no. of edges
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1. Answer:

   30 edges

   Step-by-step explanation:

   The Euler’s formula states that F + V = E + 2

   here Faces = 20 vertices = 12

   so 20 + 12 = E + 2

   32 – 2 = E

   30 = E

   No. of. edges = 30

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