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Mathematics 7 Online
OpenStudy (anonymous):

Look at the table Which polyhedron has incorrect entries for its number of faces, edges, or vertices

OpenStudy (anonymous):

Polyhedron Number of Faces Number of Edges Number of Vertices Polyhedron 1 6 12 10 Polyhedron 2 10 16 8 Polyhedron 3 11 17 8 Polyhedron 4 9 15 8 Polyhedron Number of Faces Number of Edges Number of Vertices Polyhedron 1 6 12 10 Polyhedron 2 10 16 8 Polyhedron 3 11 17 8 Polyhedron 4 9 15 8

OpenStudy (anonymous):

@pfenn1 i need help with this one

OpenStudy (pfenn1):

Don't we need some figures of the polyhedrons or are we just supposed to guess if they all make sense?

OpenStudy (pfenn1):

Here we go. Euler's formula says V - E + F = 2. where V is the number of vertices, E is the number of edges and F is the number of faces. So do this for each polyhedron and see if it equals 2. Additional info here: http://plus.maths.org/content/eulers-polyhedron-formula

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