5
3
Four
4
None. A triangle is a 2-D figure, not a 3-D figure. Therefore, the concepts of faces and bases do not apply to it.
four triangle faces.
There are 2 triangle base faces, and 3 rectangle faces. 5 total faces.
5 faces
5
1
5
7.5
1
3
trianle have no faces, because it is 2D figure.
4
One