28 of them
28 of them located at each vertex
A 30 sided polygon contains 28 triangles.
14
There are 28 lines segments that both have their endpoints located at the vertices of a given cube.
cocokragon
28 of them located at each vertex
a 28 sided shape is a icosikaioctagon. good luck pronouncing that
28 We can check this using smaller prisims, with a triangular prism (3-sided) there are 6 vertices. WIth a rectangular prism (4-sided), there are 8 vertices. The number of vertices in a prism is always twice the number of sides.
Each angle in a 28-sided shape is about 167.14 degrees.
28
A 30 sided polygon contains 28 triangles.
it is called a vemasipacolafragon. Big isn't it!
A 4-sided polygon has 2 diagonals. A 5-sided polygon, 5. 6-sided, 9. By induction, an n-sided polygon has 'n*(n-3)/2' diagonals. "n" is how many sides a shape has. so, (7)*(7-3)/2 now we have, 7*4/2 so, 28/2 = 14 Therefore, a 7-sided polygon would have 14 diagonals.
14
There are 28 lines segments that both have their endpoints located at the vertices of a given cube.
I suggest you call it a 28-sided polygon. That's much simpler than inventing, defining, and remembering lots of fancy names - which would really be a lot of wasted effort.
icosikaioctagon