Respuesta :

Megalaoofania

Answer:

400 mm

Step-by-step explanation:

8 * 10 = 80

80 * 5 = 400

400 mm

Lisawaller123

Answer:

340 mm

Step-by-step explanation:

The formula of the surface area of a rectangular prism is SA=2(wl+hl+hw) where w = width, h= height, l = length. Plugging in all the values from the figure -- 2·(5·10+8·10+8·5)= 340 mm

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