An Octagon
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it is a decagon
How many straight edges does a cube have? It has 12 straight edges. It can be solved by drawing it out, or using Euler's Theorem. F+V=E+2 The number of faces is 6, and the number of vertices is 8, so 6+8=14. 14-2=12. So there are 12 straight edges in a cube.
Every hexagon has.
there are none
A cube has 6 square faces, 12 edges and 8 vertices