Answer :
[tex]\begin{gathered} a)V=1728\:in³ \\ b)\:TSA=864\:in² \end{gathered}[/tex]
1) In this question, we can find the Volume by plugging the measurement of each side into the following formula:
a) Volume
[tex]\begin{gathered} V=a^3 \\ V=12^3 \\ V=1728\:in³ \end{gathered}[/tex]Note that since the base area is a square, and all sides measure the same we can write that a³ is the formula to find the Volume.
b) Surface area
We can tell that each cube is made up of 6 squares. Then the total surface area is given by the following formula:
[tex]\begin{gathered} A=6a^2 \\ A=6\times(12)^2 \\ TSA=864in² \end{gathered}[/tex]Note that the total