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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.

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How many faces vertices and edges does a decagonal pyramid have?

A decagonal based pyramid will have 11 faces, 11 vertices and 20 edges


How many faces have pairs of parallel edges in a decagonal based prism?

If the prism is based on regular decagons and it is a right prism, all 12 faces.


How many edges faces and vertices are on a decagonal prism?

Edges = 30 Faces = 12 Vertices = 20


How many faces edges and vertices does a decagonal prism?

12 faces 20 vertices 30 edges


How many faces verticies and edges does a decagonal prism have?

20


How many edges vertices faces does a decagonal pyramid have?

20 edges, 11 vertices (corners) and 11 faces.


How many faces have perpendicular edges in an heptagonal based prism?

An heptagonal based prism, also known as a heptagonal prism, has two faces that are perpendicular to each other. These faces are the bases of the prism, which are heptagons in this case. The perpendicular edges are the edges that connect the vertices of the bases at right angles, resulting in a total of 14 perpendicular edges in a heptagonal prism.


How many vertices and edges does a decagonal prism have?

Vertices: 20 Edges: 30 Faces: 12


How much faces vertices and edges on A decagonal prism?

A decagonal prism has 12 faces, 30 edges, and 22 vertices. The two decagonal bases contribute 10 vertices each, while the lateral faces (10 rectangles) connect the corresponding vertices of the bases. Thus, the total number of vertices is 10 (top) + 10 (bottom) = 20, and with the 10 edges of the decagons and 10 vertical edges connecting them, you get 30 edges.


How many edges does a decagonal prism have?

19 * * * * * Actually it is 30 edges. Ten around each of the decagonal faces, and ten more connecting the corresponding vertices of the two decagons.


How many faces and vertices a and edges does a decagonal prism got?

12 faces * * * * * Correct as far as it goes, but incomplete. 20 vertices 30 edges


How many faces edges and vertices does adecagonal?

Not sure what a decagonal is. Since the question refers to faces, edges and vertices, it may be assumed that the object in question is 3-dimensional. A decagon certainly is not, so decagonal cannot be a mistaken name for a decagon.