It’s b I think hope this helps you
I hope this helps you
cos71=15/P
0.325=15/P
P=46.15
Congruent triangles are all the same. Given that the faces of a triangular pyramid are congruent then all its faces are the same. It is also good to note that this pyramid has 4 faces. Given that the surface area of the pyramid is 372m^2, the area of one face will be:
area=(total area)/(number of faces)
=372/4
=93 m^2
3.48 x 10^9
I hope this is right.
