Answer: D. [tex]102\ m^2[/tex]
Step-by-step explanation:
Given : The surface area of a triangular pyramid is [tex]408 m^2[/tex].
We know that the total number faces in a triangular pyramid =4
If all the faces of the pyramid are congruent, then the area of one face of this pyramid will be :_
[tex]408\div 4=102\ m^2[/tex]
Hence, the area of one face of this pyramid = [tex]102\ m^2[/tex]
