9 straws because it has 9 edges, 6 vertices and 5 faces
five A triangular based prism has 5 A triangular based pyramid has 4 and there is no such thing as a triangular based prism pyramid - unless you mean a truncated pyramid (or a frustum) which is essentially a prism.
18 straws.
a triangular prism, square based pyramid, rectangular prism and much more
A triangular prism or a triangular based pyramid
15
9
10
five A triangular based prism has 5 A triangular based pyramid has 4 and there is no such thing as a triangular based prism pyramid - unless you mean a truncated pyramid (or a frustum) which is essentially a prism.
the answer is 12
18 straws.
Assuming that pirsim is meant to be prism, the answer is that a triangular based prism has triangular bases!
A triangular based prism has 6 vertices and 9 edges.
a triangular prism, square based pyramid, rectangular prism and much more
It could be called a pentahedral prism.
Net of the Triangular Prism
No.
You can call it a "triangular prism" rather than "triangular based prism" ... saying a prism is "triangular" imply that the base is a triangle. There's no other name that I know of. A prism is just a 3d shape, so all you have to say is <type of shape> + prism to get the point across.