To find the surface area of the triangular prism, you can find the sum of the areas of two triangles and three rectangles, or you can find the sum of the areas of one rectangle and one trapezoid. Show that the surface area is the same using either method.

We need the pictures of the graphs

What can we do about it

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's