A triangular prism has 9 parallel lines
None because a tetrahedron is a triangular based pyramid with 4 faces, 6 edges and 4 vertices
None - each of the faces (including the bas) is a triangle - triangles do not have any parallel lines.
5
Yes. A square consists of two pairs of parallel lines!
A triangular prism has 9 parallel lines
None but it has 4 faces, 6 edges and 4 vertices
None because a tetrahedron is a triangular based pyramid with 4 faces, 6 edges and 4 vertices
It has 1 set of 3 parallel lines and 3 sets of 2 parallel lines, and 18 angles (3 sides meet at each vertex)
None - each of the faces (including the bas) is a triangle - triangles do not have any parallel lines.
5
Yes. A square consists of two pairs of parallel lines!
24
24
Three pairs and one triplet. The triplet can be considered three pairs.
Two pairs.
6, 3 along the elongated part and 3 more for each side of the triangle on each side being parallel with each other.