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A pyramid with an n-sided base will have n + 1 vertices, n + 1 faces, and 2n edges. 7 vertices
A pentagon is a 5 sided polygon
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges.
A polygon with n vertices has n*(n-3)/2 diagonals. Therefore, a pentagon, which has 5 vertices, has 5*(5-3)/2 = 5 diagonals.
A 9999-sided polygon is known as a nonanonacontanonactanonaliagon. Unlike a 9999-sided polygon, a 10000-sided polygon has a much easier name; a myriagon.
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A polygon is a shape with 3 or more sides therefore a 2 sided shape isn't a polygon
A pyramid with an n-sided base will have n + 1 vertices, n + 1 faces, and 2n edges. 7 vertices
A pentagon is a 5 sided polygon
I suggest you just call it a "373839-sided polygon". Inventing, memorizing, or deriving fancy names is too much trouble for such large numbers.
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges.
On an ordinary shhet of paper, very much like a circle.
A pyramid with an n-sided base will have n + 1 vertices, n + 1 faces, and 2n edges.
None as in the form of a regular 5 sided pentagon.
Like all polygons the exterior angles add up to 360 degrees
A polygon with n vertices has n*(n-3)/2 diagonals. Therefore, a pentagon, which has 5 vertices, has 5*(5-3)/2 = 5 diagonals.