Atriangular prism has a height of 9 meters and a triangular base with the following dimensions. what is the surface area of the prism?

Triangular Prism Area = (2 * triangle area) + prism height * (sum of 3 triangle sides)
(2 * triangle area) = (2 * (1/2) * 6 * 16) =
(2 * triangle area) = (2 * 48)
(2 * triangle area) = 96

Triangular Prism Area = 96 + 9 * (10 + 10 + 16)
Triangular Prism Area = 96 + 9 * 36
Triangular Prism Area = 420 square meters

Source:
http://www.1728.org/triprism.htm