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13 September, 08:20

Use Euler's Formula to find the missing number.

Faces: 20

Edges: 30

Vertices:

+5
Answers (1)
  1. 13 September, 08:46
    0
    V=12

    Step-by-step explanation:

    Faces: 20 Edges: 30

    Write the Euler's formula for 3-dimensional figures

    F+V=E+2

    Substitute some variables for their known values

    20+V=30+2

    Add the numbers on the right side of the equation

    20+v=32

    Subtract 20 on both sides

    20-20+V=32-20

    Subtract

    V=32-20

    Number of Vertices

    V=12
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