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Lostsunrise [7]
3 years ago
10

How many edges are there in an octahedron, a polyhedron with eight congruent triangular faces?

Mathematics
1 answer:
zaharov [31]3 years ago
5 0
An octahedron in geometry is defined as a polyhedron with eight faces, six vertices and twelve edged. The term is used for regular octahedron mostly. 
Thus we can summarize it as:
Number of edges: 12
Number of faces: 8
Number of faces: 6
the answer is 12 edges.
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You haven't provided the required roots, but I can tell you how to do this kind of exercises in general.

If the x^2 coefficient is 1, i.e. the equation is written like x^2+bx+c=0, then you can say the following about the coefficients b and c:

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So, for example, if we want an equation whose roots are 4 and -2, we have:

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If your roots are rational, you can work like this: suppose you want an equation with roots 3/4 and 1/2. You have:

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