Which of the following describes a valid method for calculating the surface area of a triangle prism?

One valid method for calculating the surface area of a triangular prism is to divide the prism into its separate geometric shapes, calculate the area of each shape individually, and then add all the areas together.

1. Start by finding the area of the two triangular faces. This can be done by using the formula for the area of a triangle: 1/2 * base * height. Calculate the area of one triangle and then multiply it by 2 to find the total area of the triangular faces.

2. Next, find the area of the three rectangular faces. This can be done by multiplying the length and width of each face.

3. Finally, add the areas of the two triangular faces and the three rectangular faces to find the total surface area of the triangular prism.