Question

Two-inch cubes are stacked as shown in the drawing. What is the total surface area?

Answer 1

Note: As you have not added the drawing. So, I assume the total number of two-inch cubes are stacked are FIVE. So, I will explain based on that assumption which anyways will clear your concept.

Answer:

The total surface are will be: $\boxed{120\:\:sq.in}$

Step-by-step explanation:

As we know that

• A cube contains $6$ faces of equal area.

So, the total surface area of the cube is equal to $6$ multiplied by the area of one of the faces.

As the edge of the cube = 2 inches

So, the area of one of the faces is:

                                                       $2\times 2=4\:\:sq.in$

Thus, the total area of the cube is:

                                                      $6\times \:4=24\:\:sq.in$

Assuming there are total 5 cubes which are stacked, so the total surface are will:

           $24\times 5=120\:\:sq.in$

Therefore, the total surface are will be: $\boxed{120\:\:sq.in}$                                                    

Answer 2

Answer:

The answer is D.) 120 sq.in

Step-by-step explanation:

Count the faces that show, multiply the faces by the area of each square. There area 30 sides/faces showing and the area of each square is 4, so 30 x 4 = 120 square inches.