A triangular prism has 9 edges.
a rectangular based pyramid has got 6 edges and four faces and four vertices.
12 faces * * * * * Correct as far as it goes, but incomplete. 20 vertices 30 edges
a hexagon has one face and 6 edges a hexagonal pyramid has 7 faces a hexagonal prism has 8 faces
An octahedron has8 faces, 12 to 18 edges and 6 to 12 edges.
6
A triangular prism has 9 edges.
Yep, you got it!
a rectangular based pyramid has got 6 edges and four faces and four vertices.
Pentagonal (not pentaginal). 7 faces 15 edges 10 vertices
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges.
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges.
12 faces * * * * * Correct as far as it goes, but incomplete. 20 vertices 30 edges
8(top)+8(bottom)+8(sides)=24 24 edges(sides)
Triangular prism
a hexagon has one face and 6 edges a hexagonal pyramid has 7 faces a hexagonal prism has 8 faces
A rectangular prism has 12 angles. Each of the 8 vertices has 3 angles meeting at it, resulting in a total of 24 angles. However, we must divide by 2 to account for each angle being shared by two adjacent faces, giving us a final count of 12 unique angles in a rectangular prism.