If x, y and z represent the number of faces,

If x, y and z represent the number of faces, number of vertices and number of edges respectively of a polyhedral, then which of the following is true?
(a) x + 2 = z – y
(b) x – 2 = x – y
(c) y – 2 = z + x
(d) x – 2 = z – y

Anurag Mishra Professor Asked on 23rd February 2016 in Maths.
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    Answer: (2) x – 2 = z – y 

    Anurag Mishra Professor Answered on 27th February 2016.
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