how many faces does a triangular pyramid has and why?
A triangular prism has 4 faces! You cannot ask why, it's just a fact!! We can use the Euler's formula for finding if we know the no. of edges and no. of vertices.
The formula is:
F +V - E = 2
Just substitute the no. of edges and vertices in this formula and u can find the no. of faces. Or u can directly count the no.of faces from a triangular prism!
The triangylar prism has 6 edges and 4 vertices.
So when u substitute it,
F+4 - 6 =2
F - 2 = 2
F= 2 +2
Here is a picture of a triangular pyramid:
hope u got it!!!!