A 3-d triangle, or a tetrahedron, has 4 vertices.
First, the 3 dimensional analogue of the triangle is the tetrahedron, and the answer is 4
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges. 16 vertices
None. A triangle is a 2-D figure, not a 3-D figure. Therefore, the concepts of faces and bases do not apply to it.
Vertices are points in a solid, or 3-D figure, where edges meet.
A 3-d triangle, or a tetrahedron, has 4 vertices.
First, the 3 dimensional analogue of the triangle is the tetrahedron, and the answer is 4
a triangle-based pyramid
The 3-d figure formed from regular pentagons is the dodecahedron which has 20 vertices.
4
None.
a triangle has 1 face but if you mean a pyramid (3-D triangle) it has4 but a (a 3-D triangle with a square bottom) it has 5.
square based triangle
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges. 16 vertices
Both have 4 vertices, though he vertices of a square are 2 dimensional vertices while those of a triangular pyramid are 3-d.
There is no such thing as a polyhedon hexagon.A regular hexagon will tessellate and so it forms a plane (2-D) surface, not a 3-D shape. A 3-D shape with six faces is a hexahedron and this could be a triangular bipyramid with 5 vertices, a parallelepiped with 8 vertices, a pentagonal pyramid with six vertices. There are also other possible shapes.
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