Volume in unit cubes by decomposing shape (Full video)

Description: Find volume of a rectangular prism with labeled side. Find a missing side length on a rectangular prism when given the volume. And if a unit cube looks like this, what I want to do is I want to figure out the volume of this figure in terms of unit cubes, or in terms of cubic units. All right, well, there's a bunch of ways that we could tackle this, all of them kind of breaking this figure up in different ways. So, if I were to redraw it, it looks like this.

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