Question

The surface area of a triangular pyramid is 408 m2.

If all the faces of the pyramid are congruent, what is the area of one face of this pyramid?

A.
51 m2

B.
136 m2

C.
68 m2

D.
102 m2

Answer 1

Take 408/4 because there are 4 faces so that equals 102 m2

Answer 2

Answer: D.
`102\ m^2`

Explanation:

Given : The surface area of a triangular pyramid is
`408 m^2`.

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 :_

`408/ 4=102\ m^2`

Hence, the area of one face of this pyramid =
`102\ m^2`