4
Faces=5 edges=9 vertices=6
1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91
a single trade discount is just that one trade discount.
Trade triangle is the historical term telling the trade among three ports or regions. The trade triangle usually evolves when a region has export commodities.
Not sure about tringular or tringluar but a triangular prism will have 5 faces.
tringular shape
tringular shape
has 4
4
4
yes, 6 in total
bezen
The nearest word to "tringular" is triangular which is an adjective (like tall, for example): it is not a noun. So something - a table, for example - can be triangular but a triangular as such cannot exist in the same way that a tall cannot exist. So a triangular cannot be a line of symmetry.
A triangular prism has 6 vertices, 9 edges and 5 faces.
Faces=5 edges=9 vertices=6
a duodecahedron is one 3D shape that has triangles, and so is an icosahedron. there are others, but they have very long names