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13 March, 21:55

A polyhedron has 6 vertices and 9 edges. How many faces does it have?

a. 3b. 5c. 7d. 92. A polyhedron has 25 faces and 36 edges. How many vertices does it have?

a. 11b. 12c. 13d. 14

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Answers (1)
  1. 14 March, 01:00
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    From Euler equation

    Vertices - Edges + Faces = 2

    1. F = E - V + 2

    F = 9 - 6 + 2 = 5

    answer is B

    2. V = E - F + 2

    V = 36 - 25 + 2 = 13

    Answer is c
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