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Lena [83]
3 years ago
12

I need help quickly this is timed, im not very good with math!!!

Mathematics
2 answers:
AVprozaik [17]3 years ago
5 0

Area of rectangle: b*h

12*5=60

10*5=50

(60*4)+(50*4)=440

The total surface area of the visible sides of the boxes would be 440 square inches.

Hope this helps!

Sedbober [7]3 years ago
5 0

That would be 2 * 10*20 + 2 * 12*20 + 10*12


= 400 + 480 + 120


= 800 in^2

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