Video

Surface area of a box using nets (Full video)

Khan Academy

Description: Learn how to find the surface area of cereal box using nets. I'm going to do that again in this video, but I'm going to do it by visualizing a net for the box. The way I think about a net of a box like this, is what would happen if you were to cut the cardboard and then flatten it all out? Well, what we have here, we could imagine making a cut in the box, and the cut could be, let's see, I could make a cut back here, So I could make a cut right over there, I could cut it...

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