Respuesta :

Mibo

Answer:

Step-by-step explanation:

The surface area of a cube = 6a2 where a is the length of the side of each edge of the cube.

6a2

Putting value of a in the equation

6(2/3)^2

= 2.6666666666666666666666

Answer:

2 2/3 square inches

Step-by-step explanation:

Since each side equals 2/3 of, say, an inch, you need to multiply 2/3 by 2/3 to get the area of one side, then multiply that value by 6 to get the total surface area.

[tex]\frac{2}{3}*\frac{2}{3}=\frac{4}{9}[/tex]

[tex]\frac{4}{9} = 0.444444...[/tex]

Now, for the total:

[tex]\frac{4}{9} * 6 = \frac{24}{9}[/tex]

[tex]\frac{24}{9} = 2\frac{6}{9}[/tex]

[tex]2\frac{6}{9} = 2\frac{2}{3}[/tex]