triangular pyramid
None of the edges of a triangular pyramid is parallel to any of its other edges.
The base of a square pyramid is a square and its edges are parallel. The sides are not parallel since they intersect at the apex.
There are 9 edges. It has three edges which are parallel to each other (along the length of the prism) AND it has three pairs of parallel edges - at the top and bottom of the prism.
Not all edges are parallel to each other, only the opposite edges are parallel to each other
A hexagonal prism also has 6 faces and 10 edges. It is a prism that has a hexagonal base and two parallel congruent hexagonal faces.
A tetrahedron is a triangular based pyramid that has no parallel edges whereas most prisms have parallel edges such as a cuboid or a cylinder.
A pyramid with 18 edges would be called a nonagonal pyramid. A prism with 18 edges is called a hexagonal prism.
actually all edges of a rectangular prism are parallel to another edge
None of the edges of a triangular pyramid is parallel to any of its other edges.
The base of a square pyramid is a square and its edges are parallel. The sides are not parallel since they intersect at the apex.
There are 9 edges. It has three edges which are parallel to each other (along the length of the prism) AND it has three pairs of parallel edges - at the top and bottom of the prism.
Not true. The base has parallel edges.
Not all edges are parallel to each other, only the opposite edges are parallel to each other
A hexagonal prism also has 6 faces and 10 edges. It is a prism that has a hexagonal base and two parallel congruent hexagonal faces.
Pyramid: Five faces, eight edges, and five vertices. Prism: Six faces, twelve edges, and eight vertices.
It has 3 parallel edges and one set of parallel ends!
Each of the nine edges have another edge running parallel to them.