Question

Can anyone answer this? I really need it. Thank you in advance.

Answer 1

The answer is 1700cm²

Explanation:

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

Answer 2

1200+300+200=1700 cm^2

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.