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8 April, 23:33

A convex polyhedron has (9a - 1) faces, (8a) vertices, and (16a) edges. What is the value of a?

Euler's formula: V + F = E + 2

a=?

+5
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  1. 8 April, 23:41
    0
    8a + 9a - 1 = 16a + 2

    17a - 1 = 16a + 2

    add 1 to 2 and add - 16a to 17a

    a = 3
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