Respuesta :

DWRead

Answer:

Step-by-step explanation:

Surface area of small box = 2(4×10) + 2(4×14) + 2(10×14)

= 2(40+56+140)

= 472 cm²

Surface area of large box = 2(4×20) + 2(4×14) + 2(20×14)

= 2(80+56+280)

= 832 cm²

832 - 472 = 360 cm²

Answer: C

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