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To do surface area you need to find the area of every side. For the top long one you would multiply 11 times 5 and that is 55. For the front triangle you would multiply 3 by 4 and divide it in half so 6. And another 6 for the triangle in the back. For the base you would multiply 4 times 11 and you would get 44. And for the back piece you would multiply 3 times 11 and you would get 33. Lastly you would add up all of the answers so (55+6+6+44+33=144)So the surface area is 144 square cenimeters so A

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