Respuesta :

140 m squared is the surface area.

Answer:

166 m²

Step-by-step explanation:

Surface Area

  • 2(length x breadth) + 2(length x height) + 2(breadth x height)
  • 2(7 x 4) + 2(7 x 5) + 2(4 x 5)
  • 2(28) + 2(35) + 2(20)
  • 56 + 70 + 40
  • 110 + 56
  • 166 m²

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