Given:
The edge of each cube is a = 3cm.
To find:
The surface area of the object.
Explanation:
The number of outer square surfaces is 22.
The formula for the area of the square is,
[tex]A=a^2[/tex]
So, the total surface area of the object will be,
[tex]\begin{gathered} A=22a^2 \\ =22(3)^2 \\ =22\times9 \\ A=198cm^2 \end{gathered}[/tex]
Therefore, the surface area of the object is 198 square cm.
Final answer:
The surface area of the object is 198 square cm.
