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Old October 24th, 2009, 01:27 PM
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A polyhedron has 33 edges and 20 faces. How many vertices does it have?
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Old October 24th, 2009, 01:42 PM
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A polyhedron has 33 edges and 20 faces. How many vertices does it have?
Euler's polyhedron formula
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Old October 24th, 2009, 01:58 PM
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That is what I was thinking, but how do i do it because I am missing the vertices...

V - E + F = v- 33 + 20= ? =2

would it be 51
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Old October 24th, 2009, 02:01 PM
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That is what I was thinking, but how do i do it because I am missing the vertices...

V - E + F = v- 33 + 20= ? =2

would it be 51
brush up on your algebra/arithmetic ...

V - 33 + 20 = 2

V - 13 = 2

V = 15
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Old October 24th, 2009, 02:05 PM
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Yeah, I know I missed a step. Thanks I figured it out as you posted. Thanks!!!
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