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22 July, 06:23

Use Euler's Formula to find the missing number.

Edges: 43

Faces: 25

Vertices:?

+3
Answers (2)
  1. 22 July, 06:37
    0
    V + F - E = 2

    so we have V and F ...

    25+17-E=2

    42-E=2

    -42 - 42

    -E=-2

    multiply by - 1

    E is 40
  2. 22 July, 06:51
    0
    The answer is D, 23.
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