Respuesta :

unicorn3125

Answer:

         512 m²

Step-by-step explanation:

The surface area is a sum of areas of four triangles with base of 8 m and hight of 12 m and areas of five squares with sides of 8 m.

Sa = 4×¹/₂×8×12 + 5×8² = 192 + 320 = 512 m²

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