2
There are several different nets for a triangular prism. Unfortunately, this browser is not particularly good for graphics.
a rectangular prism has 12 different nets
The two nets of a regular right triangular prism are surface area and volume.
Work out the area of each of the 5 nets and then add them together
None but a triangular based pyramid has 4 nets
There is only one net to a triangular pyramid.
1
10
A tetrahedron is triangular based pyramid that can be spread out into 4 nets
Three
more than 12