6. Verify Euler’s formula for these solids.

    

Answers (1)

(i) Euler formula F+V = E + 2.

So, Number of faces (F) = 7, Number of vertices (V)  = 10 and number of edges (E)  = 15.

Hence putting in the formula; we get,

7 + 10 = 15 + 2

17 = 17 hence, it satisfies the Euler formula.

 

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