Question

In the picture shown below, a cube with a side of 2 inches is placed directly on top of a larger cube which has a side of 11 inches. Then, another cube with a side of 3 inches is placed directly to the side of the lower cube. What is the surface area of this assembly?

Answer 1

Answer:

6·2^2 + 6·11^2 + 6·3^2 - 2·2^2 - 2·3^2 = 778 inches²