What is the surface area of the triangular prism?

Step-by-step explanation:

surface area = bh + L(s1 + s2 + s3)

where b = 24 ft.

           h = 9 ft.

          s1 = 15 ft.

          s2 = 15 ft.

          s3 = 24 ft.

           L = 40 ft.

plugin values into the formula:

A = 24*9 + 40(15 + 15 + 24)

  = 216 + 40(54)

  = 2,376 ft²

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