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Troop 3456 designed a model of their favorite type of tent. The model did not have a bottom.

A triangular prism has a rectangular base with length of 10 inches and height of 8 inches. 2 rectangular sides have a base of 10 inches and height of 5 inches. The triangular sides have a base of 8 inches and height of 3 inches.

What is the surface area of the model?
108 square in.
124 square in.
148 square in.
204 square in.