Respuesta :

slbenson

Answer:

1200+300+200=1700 cm^2

Step-by-step explanation:

multiply each of the dimentions by each other such as 30 cm by 20 cm to get the surface area of one part, do this for each of the sides.

Answer:

The answer is 1700cm²

Step-by-step explanation:

The formula is A=2(wl+hl+hw)=2(5*20+30*20+30*5)=1700cm²

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