rectangular parallelepiped.. :)
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges. 18 base edges and 9 lateral edges
A hexagonal prism has 12 edges in total: 6 edges on the top hexagonal base, 6 edges on the bottom hexagonal base, and 6 vertical edges connecting the corresponding vertices of the two bases. The vertical edges are perpendicular to the hexagonal bases. Therefore, there are 6 perpendicular edges in a hexagonal prism.
A heptagonal prism has 7 lateral edges. This is because a heptagonal prism consists of two heptagonal bases connected by vertical edges, and each vertex of the heptagonal base corresponds to a lateral edge. Since a heptagon has 7 sides, there are 7 lateral edges in total.
Assuming a regular decagon is the base of the prism, it would be 10 faces. With an irregular decagon, it is possible that two (or more) of the edges of the decagons are perpendicular, so all 12 faces could have perpendicular edges.
A pentagonal prism has 15 edges. 10 of these are base edges and then 5 lateral edges. Formula : A prism with a n-sided polygons at each end will have 3n edges.
A prism with nine edges is called a triangular prism. In general, a prism is named based on the shape of its base; a triangular prism has two triangular bases and three rectangular lateral faces, resulting in a total of nine edges. Each triangular base contributes three edges, and three additional edges connect the corresponding vertices of the two bases.
338
A heptagonal prism is a three-dimensional geometric shape with two parallel heptagonal bases and seven rectangular lateral faces. Its properties include having 14 edges, 10 vertices, and 7 faces. The lateral faces are perpendicular to the bases, and the height of the prism is the distance between the two heptagonal bases. The volume can be calculated by multiplying the area of the heptagonal base by the height of the prism.
42
An octagonal prism has a base with eight edges.
faces= seven edges=fifteen vertices=ten
Any face that is not a base of a solid is called a lateral face. In three-dimensional geometry, lateral faces connect the edges of the base and contribute to the overall shape of the solid. For example, in a prism, the lateral faces are the sides that are not the top or bottom bases.