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According to Euler's characteristics of prisms:

V - E + F = 2

See related link "Eulers" for more info

Therefore:

V + F - 2 = E

10 + 7 - 2 = E

E=17-2

E=15

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13y ago
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Q: If a prism has 7 faces and 10 vertices how many edges does it have?
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